diff --git a/framework/Volo.Abp.sln b/framework/Volo.Abp.sln
index ad70bec8dd..aa0a3f1222 100644
--- a/framework/Volo.Abp.sln
+++ b/framework/Volo.Abp.sln
@@ -331,8 +331,6 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Volo.Abp.GlobalFeatures", "
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Volo.Abp.GlobalFeatures.Tests", "test\Volo.Abp.GlobalFeatures.Tests\Volo.Abp.GlobalFeatures.Tests.csproj", "{231F1581-AA21-44C3-BF27-51EB3AD5355C}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Volo.Abp.MultiLingualEntities", "src\Volo.Abp.MultiLingualEntities\Volo.Abp.MultiLingualEntities.csproj", "{83E4016D-5941-4735-AF88-422144619588}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -987,10 +985,6 @@ Global
 		{231F1581-AA21-44C3-BF27-51EB3AD5355C}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{231F1581-AA21-44C3-BF27-51EB3AD5355C}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{231F1581-AA21-44C3-BF27-51EB3AD5355C}.Release|Any CPU.Build.0 = Release|Any CPU
-		{83E4016D-5941-4735-AF88-422144619588}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{83E4016D-5941-4735-AF88-422144619588}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{83E4016D-5941-4735-AF88-422144619588}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{83E4016D-5941-4735-AF88-422144619588}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -1158,7 +1152,6 @@ Global
 		{C1D891B0-AE83-42CB-987D-425A2787DE78} = {5DF0E140-0513-4D0D-BE2E-3D4D85CD70E6}
 		{04F44063-C952-403A-815F-EFB778BDA125} = {5DF0E140-0513-4D0D-BE2E-3D4D85CD70E6}
 		{231F1581-AA21-44C3-BF27-51EB3AD5355C} = {447C8A77-E5F0-4538-8687-7383196D04EA}
-		{83E4016D-5941-4735-AF88-422144619588} = {5DF0E140-0513-4D0D-BE2E-3D4D85CD70E6}
 	EndGlobalSection
 	GlobalSection(ExtensibilityGlobals) = postSolution
 		SolutionGuid = {BB97ECF4-9A84-433F-A80B-2A3285BDD1D5}
diff --git a/framework/src/Volo.Abp.AutoMapper/AutoMapper/AbpAutoMapperMultiLingualDtoExtensions.cs b/framework/src/Volo.Abp.AutoMapper/AutoMapper/AbpAutoMapperMultiLingualDtoExtensions.cs
index 345f28d542..37ed4af95d 100644
--- a/framework/src/Volo.Abp.AutoMapper/AutoMapper/AbpAutoMapperMultiLingualDtoExtensions.cs
+++ b/framework/src/Volo.Abp.AutoMapper/AutoMapper/AbpAutoMapperMultiLingualDtoExtensions.cs
@@ -2,8 +2,8 @@
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
+using Volo.Abp.Domain.Entities;
 using Volo.Abp.Localization;
-using Volo.Abp.MultiLingualEntities;
 using Volo.Abp.Settings;
 using Volo.Abp.Threading;
 
diff --git a/framework/src/Volo.Abp.AutoMapper/Volo.Abp.AutoMapper.csproj b/framework/src/Volo.Abp.AutoMapper/Volo.Abp.AutoMapper.csproj
index a026d68c48..6e261e0b2a 100644
--- a/framework/src/Volo.Abp.AutoMapper/Volo.Abp.AutoMapper.csproj
+++ b/framework/src/Volo.Abp.AutoMapper/Volo.Abp.AutoMapper.csproj
@@ -18,7 +18,7 @@
     <ProjectReference Include="..\Volo.Abp.Auditing\Volo.Abp.Auditing.csproj" />
     <ProjectReference Include="..\Volo.Abp.ObjectExtending\Volo.Abp.ObjectExtending.csproj" />
     <ProjectReference Include="..\Volo.Abp.ObjectMapping\Volo.Abp.ObjectMapping.csproj" />
-    <ProjectReference Include="..\Volo.Abp.MultiLingualEntities\Volo.Abp.MultiLingualEntities.csproj" />
+    <ProjectReference Include="..\Volo.Abp.Ddd.Domain\Volo.Abp.Ddd.Domain.csproj" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/framework/src/Volo.Abp.MultiLingualEntities/Volo/Abp/MultiLingualEntities/IEntityTranslation.cs b/framework/src/Volo.Abp.Ddd.Domain/Volo/Abp/Domain/Entities/IEntityTranslation.cs
similarity index 74%
rename from framework/src/Volo.Abp.MultiLingualEntities/Volo/Abp/MultiLingualEntities/IEntityTranslation.cs
rename to framework/src/Volo.Abp.Ddd.Domain/Volo/Abp/Domain/Entities/IEntityTranslation.cs
index 1a770bff92..0684e615ad 100644
--- a/framework/src/Volo.Abp.MultiLingualEntities/Volo/Abp/MultiLingualEntities/IEntityTranslation.cs
+++ b/framework/src/Volo.Abp.Ddd.Domain/Volo/Abp/Domain/Entities/IEntityTranslation.cs
@@ -1,4 +1,4 @@
-namespace Volo.Abp.MultiLingualEntities
+namespace Volo.Abp.Domain.Entities
 {
     public interface IEntityTranslation
     {
@@ -6,6 +6,7 @@
     }
 
     public interface IEntityTranslation<TEntity, TPrimaryKeyOfMultiLingualEntity> : IEntityTranslation
+        where TEntity : IEntity<TPrimaryKeyOfMultiLingualEntity>
     {
         TEntity Core { get; set; }
 
@@ -13,6 +14,7 @@
     }
 
     public interface IEntityTranslation<TEntity>: IEntityTranslation<TEntity, int>
+        where TEntity : IEntity<int>
     {
 
     }
diff --git a/framework/src/Volo.Abp.MultiLingualEntities/Volo/Abp/MultiLingualEntities/IMultiLingualEntity.cs b/framework/src/Volo.Abp.Ddd.Domain/Volo/Abp/Domain/Entities/IMultiLingualEntity.cs
similarity index 84%
rename from framework/src/Volo.Abp.MultiLingualEntities/Volo/Abp/MultiLingualEntities/IMultiLingualEntity.cs
rename to framework/src/Volo.Abp.Ddd.Domain/Volo/Abp/Domain/Entities/IMultiLingualEntity.cs
index 9e3dae8cc2..2b25a7a90a 100644
--- a/framework/src/Volo.Abp.MultiLingualEntities/Volo/Abp/MultiLingualEntities/IMultiLingualEntity.cs
+++ b/framework/src/Volo.Abp.Ddd.Domain/Volo/Abp/Domain/Entities/IMultiLingualEntity.cs
@@ -1,6 +1,6 @@
 using System.Collections.Generic;
 
-namespace Volo.Abp.MultiLingualEntities
+namespace Volo.Abp.Domain.Entities
 {
     public interface IMultiLingualEntity<TTranslation>
         where TTranslation : class, IEntityTranslation
diff --git a/framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/Modeling/AbpEntityTypeBuilderExtensions.cs b/framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/Modeling/AbpEntityTypeBuilderExtensions.cs
index 179e575358..f70e64bb0a 100644
--- a/framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/Modeling/AbpEntityTypeBuilderExtensions.cs
+++ b/framework/src/Volo.Abp.EntityFrameworkCore/Volo/Abp/EntityFrameworkCore/Modeling/AbpEntityTypeBuilderExtensions.cs
@@ -7,7 +7,6 @@ using Volo.Abp.Data;
 using Volo.Abp.Domain.Entities;
 using Volo.Abp.EntityFrameworkCore.ValueComparers;
 using Volo.Abp.EntityFrameworkCore.ValueConverters;
-using Volo.Abp.MultiLingualEntities;
 using Volo.Abp.MultiTenancy;
 using Volo.Abp.ObjectExtending;
 
diff --git a/framework/src/Volo.Abp.MultiLingualEntities/FodyWeavers.xml b/framework/src/Volo.Abp.MultiLingualEntities/FodyWeavers.xml
deleted file mode 100644
index be0de3a908..0000000000
--- a/framework/src/Volo.Abp.MultiLingualEntities/FodyWeavers.xml
+++ /dev/null
@@ -1,3 +0,0 @@
-<Weavers xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="FodyWeavers.xsd">
-  <ConfigureAwait ContinueOnCapturedContext="false" />
-</Weavers>
\ No newline at end of file
diff --git a/framework/src/Volo.Abp.MultiLingualEntities/FodyWeavers.xsd b/framework/src/Volo.Abp.MultiLingualEntities/FodyWeavers.xsd
deleted file mode 100644
index 3f3946e282..0000000000
--- a/framework/src/Volo.Abp.MultiLingualEntities/FodyWeavers.xsd
+++ /dev/null
@@ -1,30 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
-  <!-- This file was generated by Fody. Manual changes to this file will be lost when your project is rebuilt. -->
-  <xs:element name="Weavers">
-    <xs:complexType>
-      <xs:all>
-        <xs:element name="ConfigureAwait" minOccurs="0" maxOccurs="1">
-          <xs:complexType>
-            <xs:attribute name="ContinueOnCapturedContext" type="xs:boolean" />
-          </xs:complexType>
-        </xs:element>
-      </xs:all>
-      <xs:attribute name="VerifyAssembly" type="xs:boolean">
-        <xs:annotation>
-          <xs:documentation>'true' to run assembly verification (PEVerify) on the target assembly after all weavers have been executed.</xs:documentation>
-        </xs:annotation>
-      </xs:attribute>
-      <xs:attribute name="VerifyIgnoreCodes" type="xs:string">
-        <xs:annotation>
-          <xs:documentation>A comma-separated list of error codes that can be safely ignored in assembly verification.</xs:documentation>
-        </xs:annotation>
-      </xs:attribute>
-      <xs:attribute name="GenerateXsd" type="xs:boolean">
-        <xs:annotation>
-          <xs:documentation>'false' to turn off automatic generation of the XML Schema file.</xs:documentation>
-        </xs:annotation>
-      </xs:attribute>
-    </xs:complexType>
-  </xs:element>
-</xs:schema>
\ No newline at end of file
diff --git a/framework/src/Volo.Abp.MultiLingualEntities/Volo.Abp.MultiLingualEntities.csproj b/framework/src/Volo.Abp.MultiLingualEntities/Volo.Abp.MultiLingualEntities.csproj
deleted file mode 100644
index 7b81cbbe05..0000000000
--- a/framework/src/Volo.Abp.MultiLingualEntities/Volo.Abp.MultiLingualEntities.csproj
+++ /dev/null
@@ -1,11 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-    <Import Project="..\..\..\configureawait.props" />
-    <Import Project="..\..\..\common.props" />
-    
-    <PropertyGroup>
-        <TargetFramework>netstandard2.0</TargetFramework>
-        <RootNamespace />
-    </PropertyGroup>
-
-</Project>