diff --git a/src/Color/Main.cs b/src/Color/Main.cs
index 3f5edfa..afe4575 100644
--- a/src/Color/Main.cs
+++ b/src/Color/Main.cs
@@ -7,6 +7,8 @@ namespace Dot.Color;
 [Description(nameof(Str.ScreenPixelTool))]
 [Localization(typeof(Str))]
 [SupportedOSPlatform(nameof(OSPlatform.Windows))]
+
+// ReSharper disable once ClassNeverInstantiated.Global
 internal sealed class Main : ToolBase<Option>
 {
     protected override Task Core()
diff --git a/src/Native/KeyboardHook.cs b/src/Native/KeyboardHook.cs
index 97459db..77ccdd0 100644
--- a/src/Native/KeyboardHook.cs
+++ b/src/Native/KeyboardHook.cs
@@ -57,6 +57,7 @@ internal sealed class KeyboardHook : IDisposable
 
     private nint HookCallback(int nCode, nint wParam, nint lParam)
     {
+        // ReSharper disable once InvertIf
         if (nCode >= 0 && wParam == Win32.WM_KEYDOWN) {
             var hookStruct = (Win32.KbdllhooksStruct)Marshal.PtrToStructure(lParam, typeof(Win32.KbdllhooksStruct))!;
             if (KeyUpEvent?.Invoke(null, hookStruct) ?? false) {
diff --git a/src/Native/MouseHook.cs b/src/Native/MouseHook.cs
index 15a8d57..7b7bac2 100644
--- a/src/Native/MouseHook.cs
+++ b/src/Native/MouseHook.cs
@@ -55,6 +55,7 @@ internal sealed class MouseHook : IDisposable
 
     private nint HookCallback(int nCode, nint wParam, nint lParam)
     {
+        // ReSharper disable once InvertIf
         if (wParam == Win32.WM_MOUSEMOVE) {
             var hookStruct = (Msllhookstruct)Marshal.PtrToStructure(lParam, typeof(Msllhookstruct))!;
             MouseMoveEvent?.Invoke(null, new MouseEventArgs(MouseButtons.None, 0, hookStruct.X, hookStruct.Y, 0));
diff --git a/src/Native/VkCode.cs b/src/Native/VkCode.cs
index a00173a..77e1b26 100644
--- a/src/Native/VkCode.cs
+++ b/src/Native/VkCode.cs
@@ -1,8 +1,10 @@
+// ReSharper disable UnusedMember.Global
+
 #pragma warning disable CS1591
 
 namespace Dot.Native;
 
-public class VkCode
+internal static class VkCode
 {
     public const int VK_A                   = 0x41; // A 键
     public const int VK_ACCEPT              = 0x1E; // IME 接受
diff --git a/src/Native/Win32.cs b/src/Native/Win32.cs
index 4d62865..55b8313 100644
--- a/src/Native/Win32.cs
+++ b/src/Native/Win32.cs
@@ -1,7 +1,7 @@
 // ReSharper disable UnusedMember.Global
 // ReSharper disable UnusedMethodReturnValue.Global
 
-#pragma warning disable SA1307
+#pragma warning disable SA1307, SX1309
 
 using System.Runtime.InteropServices;
 
@@ -30,59 +30,69 @@ internal static partial class Win32
     public delegate nint HookProc(int nCode, nint wParam, nint lParam);
 
     [LibraryImport(_USER32_DLL)]
-    internal static partial nint CallNextHookEx(nint hhk, int nCode, nint wParam, nint lParam);
+    public static partial nint CallNextHookEx(nint hhk, int nCode, nint wParam, nint lParam);
 
     [LibraryImport(_USER32_DLL)]
     [return: MarshalAs(UnmanagedType.Bool)]
-    internal static partial bool ChangeClipboardChain(nint hWndRemove, nint hWndNewNext);
+    public static partial bool ChangeClipboardChain(nint hWndRemove, nint hWndNewNext);
 
     [LibraryImport(_USER32_DLL)]
-    internal static partial int GetClassLongA(nint hWnd, int nIndex);
+    public static partial int GetClassLongA(nint hWnd, int nIndex);
 
     [LibraryImport(_KERNEL32_DLL)]
-    internal static partial nint GetConsoleWindow();
+    public static partial nint GetConsoleWindow();
 
     [LibraryImport(_USER32_DLL)]
-    internal static partial nint GetDesktopWindow();
+    public static partial nint GetDesktopWindow();
 
     [LibraryImport(_KERNEL32_DLL, StringMarshalling = StringMarshalling.Utf16)]
-    internal static partial nint GetModuleHandleA(string lpModuleName);
+    public static partial nint GetModuleHandleA(string lpModuleName);
 
     [LibraryImport(_GDI32_DLL)]
-    internal static partial uint GetPixel(nint dc, int x, int y);
+    public static partial uint GetPixel(nint dc, int x, int y);
 
     [LibraryImport(_USER32_DLL)]
-    internal static partial nint GetWindowDC(nint hWnd);
+    public static partial nint GetWindowDC(nint hWnd);
 
     [LibraryImport(_USER32_DLL)]
-    internal static partial int ReleaseDC(nint hWnd, nint dc);
+    public static partial int ReleaseDC(nint hWnd, nint dc);
 
     [LibraryImport(_USER32_DLL)]
-    internal static partial uint SendInput(uint cInputs, [MarshalAs(UnmanagedType.LPArray)] InputStruct[] inputs
-                                         , int  cbSize);
+    public static partial uint SendInput(uint cInputs, [MarshalAs(UnmanagedType.LPArray)] InputStruct[] inputs
+                                       , int  cbSize);
 
     [LibraryImport(_USER32_DLL)]
-    internal static partial int SendMessageA(nint hwnd, uint wMsg, nint wParam, nint lParam);
+    public static partial int SendMessageA(nint hwnd, uint wMsg, nint wParam, nint lParam);
 
     [LibraryImport(_USER32_DLL)]
-    internal static partial int SetClassLongA(nint hWnd, int nIndex, int dwNewLong);
+    public static partial int SetClassLongA(nint hWnd, int nIndex, int dwNewLong);
 
     [LibraryImport(_USER32_DLL)]
-    internal static partial int SetClipboardViewer(nint hWnd);
+    public static partial int SetClipboardViewer(nint hWnd);
 
     [LibraryImport(_KERNEL32_DLL)]
-    internal static partial void SetLocalTime(Systemtime st);
+    public static partial void SetLocalTime(Systemtime st);
 
     [LibraryImport(_USER32_DLL)]
-    internal static partial nint SetWindowsHookExA(int idHook, HookProc lpfn, nint hMod, uint dwThreadId);
+    public static partial nint SetWindowsHookExA(int idHook, HookProc lpfn, nint hMod, uint dwThreadId);
 
     [LibraryImport(_USER32_DLL)]
     [return: MarshalAs(UnmanagedType.Bool)]
-    internal static partial bool ShowWindow(nint hWnd, int nCmdShow);
+    public static partial bool ShowWindow(nint hWnd, int nCmdShow);
 
     [LibraryImport(_USER32_DLL)]
     [return: MarshalAs(UnmanagedType.Bool)]
-    internal static partial bool UnhookWindowsHookExA(nint hhk);
+    public static partial bool UnhookWindowsHookExA(nint hhk);
+
+    [StructLayout(LayoutKind.Explicit)]
+    public readonly struct KbdllhooksStruct
+    {
+        [FieldOffset(0)]  public readonly  uint vkCode;
+        [FieldOffset(16)] private readonly nint dwExtraInfo;
+        [FieldOffset(8)]  private readonly uint flags;
+        [FieldOffset(4)]  private readonly uint scanCode;
+        [FieldOffset(12)] private readonly uint time;
+    }
 
     [StructLayout(LayoutKind.Explicit)]
     public struct InputStruct
@@ -91,29 +101,19 @@ internal static partial class Win32
         [FieldOffset(0)] public uint             type;
     }
 
-    [StructLayout(LayoutKind.Explicit)]
-    public struct KbdllhooksStruct
-    {
-        [FieldOffset(16)] public nint dwExtraInfo;
-        [FieldOffset(8)]  public uint flags;
-        [FieldOffset(4)]  public uint scanCode;
-        [FieldOffset(12)] public uint time;
-        [FieldOffset(0)]  public uint vkCode;
-    }
-
     [StructLayout(LayoutKind.Explicit)]
     public struct KeybdInputStruct
     {
-        [FieldOffset(20)] public long   _; // 补位以匹配 UNION的MOUSEINPUT参数 （28bytes）
-        [FieldOffset(12)] public nint   dwExtraInfo;
-        [FieldOffset(4)]  public uint   dwFlags;
-        [FieldOffset(8)]  public uint   time;
-        [FieldOffset(2)]  public ushort wScan;
-        [FieldOffset(0)]  public ushort wVk;
+        [FieldOffset(4)]  public           uint   dwFlags;
+        [FieldOffset(0)]  public           ushort wVk;
+        [FieldOffset(20)] private readonly long   _; // 补位以匹配 UNION的MOUSEINPUT参数 （28bytes）
+        [FieldOffset(12)] private readonly nint   dwExtraInfo;
+        [FieldOffset(8)]  private readonly uint   time;
+        [FieldOffset(2)]  private readonly ushort wScan;
     }
 
     [StructLayout(LayoutKind.Explicit)]
-    internal ref struct Systemtime
+    public ref struct Systemtime
     {
         [FieldOffset(6)]  public ushort wDay;
         [FieldOffset(4)]  public ushort wDayOfWeek;
diff --git a/src/Tran/Dto/BaiduTranslateResultDto.cs b/src/Tran/Dto/BaiduTranslateResultDto.cs
index da1031f..dfaaf6d 100644
--- a/src/Tran/Dto/BaiduTranslateResultDto.cs
+++ b/src/Tran/Dto/BaiduTranslateResultDto.cs
@@ -1,5 +1,7 @@
 // ReSharper disable  InconsistentNaming
 // ReSharper disable  ClassNeverInstantiated.Global
+// ReSharper disable  UnusedMember.Global
+// ReSharper disable UnusedAutoPropertyAccessor.Global
 
 #pragma warning disable IDE1006,SA1300
 namespace Dot.Tran.Dto;
@@ -47,6 +49,7 @@ internal sealed record BaiduTranslateResultDto
 
     public sealed record Trans_result
     {
+        // ReSharper disable once CollectionNeverUpdated.Global
         public List<DataItem> data { get; set; }
 
         public string from { get; set; }
diff --git a/src/Tran/Main.cs b/src/Tran/Main.cs
index 072fdad..87b0c56 100644
--- a/src/Tran/Main.cs
+++ b/src/Tran/Main.cs
@@ -7,6 +7,8 @@ namespace Dot.Tran;
 
 [Description(nameof(Str.TranslateTool))]
 [Localization(typeof(Str))]
+
+// ReSharper disable once ClassNeverInstantiated.Global
 internal sealed class Main : ToolBase<Option>
 {
     [SupportedOSPlatform(nameof(OSPlatform.Windows))]
diff --git a/src/Tran/Option.cs b/src/Tran/Option.cs
index ec74531..28a9157 100644
--- a/src/Tran/Option.cs
+++ b/src/Tran/Option.cs
@@ -1,3 +1,4 @@
 namespace Dot.Tran;
 
+// ReSharper disable once ClassNeverInstantiated.Global
 internal sealed class Option : OptionBase { }
\ No newline at end of file
diff --git a/src/Tran/WinMain.cs b/src/Tran/WinMain.cs
index 88f82fe..970e151 100644
--- a/src/Tran/WinMain.cs
+++ b/src/Tran/WinMain.cs
@@ -14,19 +14,18 @@ namespace Dot.Tran;
 [SupportedOSPlatform(nameof(OSPlatform.Windows))]
 internal sealed partial class WinMain : Form
 {
-    private const int    _RETRY_WAIT_MIL_SEC = 1000; //                                          重试等待时间（秒）
-    private const string _TRANSLATE_API_URL  = $"{_TRANSLATE_HOME_URL}/v2transapi";
-    private const string _TRANSLATE_HOME_URL = "https://fanyi.baidu.com";
-
-    private readonly HttpClient   _httpClient   = new();
+    private const    int          _RETRY_WAIT_MIL_SEC = 1000;
+    private const    string       _TRANSLATE_API_URL = $"{_TRANSLATE_HOME_URL}/v2transapi";
+    private const    string       _TRANSLATE_HOME_URL = "https://fanyi.baidu.com";
+    private readonly HttpClient   _httpClient = new();
     private readonly KeyboardHook _keyboardHook = new();
-    private readonly Label        _labelDest    = new(); //                                      显示翻译内容的文本框
-    private readonly MouseHook    _mouseHook    = new();
-    private readonly Size         _mouseMargin  = new(10, 10);
-    private          bool         _capsLockPressed; //                                           大写键按下进行翻译，区分ctrl+c
+    private readonly Label        _labelDest = new();
+    private readonly MouseHook    _mouseHook = new();
+    private readonly Size         _mouseMargin = new(10, 10); //        窗体与鼠标指针的距离
+    private          bool         _capsLockPressed; //                               大写键按下进行翻译，区分ctrl+c
     private          bool         _disposed;
-    private          nint         _nextClipViewer; //                                            下一个剪贴板监视链对象句柄
-    private          string       _token = "ae72ebad4113270fd26ada5125301268";
+    private          nint         _nextClipMonitor; //                               下一个剪贴板监视链对象句柄
+    private          string       _token = "ae72ebad4113270fd26ada5125301268"; //    翻译api token
 
     public WinMain()
     {
@@ -34,8 +33,7 @@ internal sealed partial class WinMain : Form
         InitHook();
         InitLabelDest();
         InitHttpClient();
-
-        _nextClipViewer = Win32.SetClipboardViewer(Handle);
+        InitClipMonitor();
     }
 
     ~WinMain()
@@ -58,7 +56,7 @@ internal sealed partial class WinMain : Form
             _keyboardHook?.Dispose();
         }
 
-        Win32.ChangeClipboardChain(Handle, _nextClipViewer); // 从剪贴板监视链移除本窗体
+        Win32.ChangeClipboardChain(Handle, _nextClipMonitor); // 从剪贴板监视链移除本窗体
         _disposed = true;
     }
 
@@ -66,21 +64,21 @@ internal sealed partial class WinMain : Form
     {
         void SendToNext(Message message)
         {
-            _ = Win32.SendMessageA(_nextClipViewer, (uint)message.Msg, message.WParam, message.LParam);
+            _ = Win32.SendMessageA(_nextClipMonitor, (uint)message.Msg, message.WParam, message.LParam);
         }
 
         switch (m.Msg) {
             case Win32.WM_DRAWCLIPBOARD:
                 if (_capsLockPressed) {
                     _capsLockPressed = false;
-                    DisplayClipboardData();
+                    TranslateAndShow();
                 }
 
                 SendToNext(m);
                 break;
             case Win32.WM_CHANGECBCHAIN:
-                if (m.WParam == _nextClipViewer) {
-                    _nextClipViewer = m.LParam;
+                if (m.WParam == _nextClipMonitor) {
+                    _nextClipMonitor = m.LParam;
                 }
                 else {
                     SendToNext(m);
@@ -96,27 +94,9 @@ internal sealed partial class WinMain : Form
     [GeneratedRegex("token: '(\\w+)'")]
     private static partial Regex TokenRegex();
 
-    /// <summary>
-    ///     显示剪贴板内容.
-    /// </summary>
-    private void DisplayClipboardData()
+    private void InitClipMonitor()
     {
-        var clipText = ClipboardService.GetText();
-        if (clipText.NullOrWhiteSpace()) {
-            return;
-        }
-
-        _labelDest.Text = Str.Translating;
-        Task.Run(() => {
-            var translateText = TranslateText(clipText);
-            ClipboardService.SetText(translateText);
-            Invoke(() => { _labelDest.Text = translateText; });
-        });
-
-        var point = Cursor.Position;
-        point.Offset(new Point(_mouseMargin));
-        Location = point;
-        Show();
+        _nextClipMonitor = Win32.SetClipboardViewer(Handle);
     }
 
     private void InitForm()
@@ -187,13 +167,35 @@ internal sealed partial class WinMain : Form
         Controls.Add(_labelDest);
     }
 
+    private void TranslateAndShow()
+    {
+        var clipText = ClipboardService.GetText();
+        if (clipText.NullOrWhiteSpace()) {
+            return;
+        }
+
+        _labelDest.Text = Str.Translating;
+        Task.Run(() => {
+            var translateText = TranslateText(clipText);
+            ClipboardService.SetText(translateText);
+            Invoke(() => { _labelDest.Text = translateText; });
+        });
+
+        var point = Cursor.Position;
+        point.Offset(new Point(_mouseMargin));
+        Location = point;
+        Show();
+    }
+
     private string TranslateText(string sourceText)
     {
         while (true) {
             var sign = BaiduSignCracker.Sign(sourceText);
             var content = new FormUrlEncodedContent(new List<KeyValuePair<string, string>> {
                                                         new("from", "auto")
-                                                      , new("to", "zh")
+                                                      , new( //
+                                                            "to"
+                                                          , CultureInfo.CurrentCulture.TwoLetterISOLanguageName)
                                                       , new("query", sourceText)
                                                       , new("simple_means_flag", "3")
                                                       , new("sign", sign)