diff --git a/FreeSql.DbContext/FreeSql.DbContext.xml b/FreeSql.DbContext/FreeSql.DbContext.xml
index 132d875e..4854f49c 100644
--- a/FreeSql.DbContext/FreeSql.DbContext.xml
+++ b/FreeSql.DbContext/FreeSql.DbContext.xml
@@ -125,6 +125,13 @@
             清空状态数据
             </summary>
         </member>
+        <member name="M:FreeSql.DbSet`1.RemoveAsync(System.Linq.Expressions.Expression{System.Func{`0,System.Boolean}})">
+            <summary>
+            根据 lambda 条件删除数据
+            </summary>
+            <param name="predicate"></param>
+            <returns></returns>
+        </member>
         <member name="M:FreeSql.DbSet`1.Add(`0)">
             <summary>
             添加
@@ -479,5 +486,14 @@
             <param name="that"></param>
             <returns></returns>
         </member>
+        <member name="M:Microsoft.Extensions.DependencyInjection.FreeSqlRepositoryDependencyInjection.AddFreeRepository(Microsoft.Extensions.DependencyInjection.IServiceCollection,System.Action{FreeSql.FluentDataFilter},System.Reflection.Assembly[])">
+            <summary>
+            批量注入 Repository，可以参考代码自行调整
+            </summary>
+            <param name="services"></param>
+            <param name="globalDataFilter"></param>
+            <param name="assemblies"></param>
+            <returns></returns>
+        </member>
     </members>
 </doc>
diff --git a/FreeSql.DbContext/UnitOfWork/IUnitOfWork.cs b/FreeSql.DbContext/UnitOfWork/IUnitOfWork.cs
index be92522b..db67ee47 100644
--- a/FreeSql.DbContext/UnitOfWork/IUnitOfWork.cs
+++ b/FreeSql.DbContext/UnitOfWork/IUnitOfWork.cs
@@ -10,6 +10,7 @@ namespace FreeSql
     /// </summary>
     public interface IUnitOfWork : IDisposable
     {
+        IFreeSql Orm { get; }
 
         /// <summary>
         /// 开启事务，或者返回已开启的事务
@@ -27,7 +28,7 @@ namespace FreeSql
         /// <summary>
         /// 是否启用工作单元
         /// </summary>
-        [Obsolete("即将删除（保留到2020-08-01），请改用 UnitOfWorkManager 的方式管理事务 https://github.com/dotnetcore/FreeSql/issues/289")] 
+        [Obsolete("即将删除（保留到2020-12-01），请改用 UnitOfWorkManager 的方式管理事务 https://github.com/dotnetcore/FreeSql/issues/289")] 
         bool Enable { get; }
 
         /// <summary>
@@ -36,13 +37,13 @@ namespace FreeSql
         /// <para></para>
         /// 若已开启事务（已有Insert/Update/Delete操作），调用此方法将发生异常，建议在执行逻辑前调用
         /// </summary>
-        [Obsolete("即将删除（保留到2020-08-01），请改用 UnitOfWorkManager 的方式管理事务 https://github.com/dotnetcore/FreeSql/issues/289")]
+        [Obsolete("即将删除（保留到2020-12-01），请改用 UnitOfWorkManager 的方式管理事务 https://github.com/dotnetcore/FreeSql/issues/289")]
         void Close();
 
         /// <summary>
         /// 开启工作单元
         /// </summary>
-        [Obsolete("即将删除（保留到2020-08-01），请改用 UnitOfWorkManager 的方式管理事务 https://github.com/dotnetcore/FreeSql/issues/289")]
+        [Obsolete("即将删除（保留到2020-12-01），请改用 UnitOfWorkManager 的方式管理事务 https://github.com/dotnetcore/FreeSql/issues/289")]
         void Open();
 
         /// <summary>
diff --git a/FreeSql.DbContext/UnitOfWork/UnitOfWork.cs b/FreeSql.DbContext/UnitOfWork/UnitOfWork.cs
index 941cdac8..7dea638a 100644
--- a/FreeSql.DbContext/UnitOfWork/UnitOfWork.cs
+++ b/FreeSql.DbContext/UnitOfWork/UnitOfWork.cs
@@ -64,6 +64,9 @@ namespace FreeSql
             Enable = true;
         }
 
+        DbContextScopedFreeSql _ormScoped;
+        public IFreeSql Orm => _ormScoped ?? (_ormScoped = DbContextScopedFreeSql.Create(_fsql, null, () => this));
+
         public IsolationLevel? IsolationLevel { get; set; }
 
         public DbTransaction GetOrBeginTransaction(bool isCreate = true)
diff --git a/FreeSql.DbContext/UnitOfWork/UnitOfWorkManager.cs b/FreeSql.DbContext/UnitOfWork/UnitOfWorkManager.cs
index 428fd7fb..2cf087b3 100644
--- a/FreeSql.DbContext/UnitOfWork/UnitOfWorkManager.cs
+++ b/FreeSql.DbContext/UnitOfWork/UnitOfWorkManager.cs
@@ -184,6 +184,7 @@ namespace FreeSql
             IUnitOfWork _baseUow;
             internal Action OnDispose;
             public UnitOfWorkOrginal(IUnitOfWork baseUow) => _baseUow = baseUow;
+            public IFreeSql Orm => _baseUow.Orm;
             public IsolationLevel? IsolationLevel { get => _baseUow.IsolationLevel; set => _baseUow.IsolationLevel = value; }
             public DbContext.EntityChangeReport EntityChangeReport => _baseUow.EntityChangeReport;
 
@@ -205,6 +206,7 @@ namespace FreeSql
             IUnitOfWork _baseUow;
             internal Action OnDispose;
             public UnitOfWorkVirtual(IUnitOfWork baseUow) => _baseUow = baseUow;
+            public IFreeSql Orm => _baseUow.Orm;
             public IsolationLevel? IsolationLevel { get => _baseUow.IsolationLevel; set { } }
             public DbContext.EntityChangeReport EntityChangeReport => _baseUow.EntityChangeReport;
 
@@ -222,6 +224,7 @@ namespace FreeSql
             internal IFreeSql _fsql;
             internal Action OnDispose;
             public UnitOfWorkNothing(IFreeSql fsql) => _fsql = fsql;
+            public IFreeSql Orm => _fsql;
             public IsolationLevel? IsolationLevel { get; set; }
             public DbContext.EntityChangeReport EntityChangeReport { get; } = new DbContext.EntityChangeReport();