diff --git a/v2rayN/v2rayN/Forms/MainForm.cs b/v2rayN/v2rayN/Forms/MainForm.cs
index d296856d..ec357a87 100644
--- a/v2rayN/v2rayN/Forms/MainForm.cs
+++ b/v2rayN/v2rayN/Forms/MainForm.cs
@@ -652,9 +652,9 @@ namespace v2rayN.Forms
             GetLvSelectedIndex();
 
             StringBuilder sb = new StringBuilder();
-            for (int k = 0; k < lvSelecteds.Count; k++)
+            foreach (int v in lvSelecteds)
             {
-                string url = ConfigHandler.GetVmessQRCode(config, lvSelecteds[k]);
+                string url = ConfigHandler.GetVmessQRCode(config, v);
                 if (Utils.IsNullOrEmpty(url))
                 {
                     continue;
@@ -674,9 +674,9 @@ namespace v2rayN.Forms
             GetLvSelectedIndex();
 
             StringBuilder sb = new StringBuilder();
-            for (int k = 0; k < lvSelecteds.Count; k++)
+            foreach (int v in lvSelecteds)
             {
-                string url = ConfigHandler.GetVmessQRCode(config, lvSelecteds[k]);
+                string url = ConfigHandler.GetVmessQRCode(config, v);
                 if (Utils.IsNullOrEmpty(url))
                 {
                     continue;
diff --git a/v2rayN/v2rayN/Forms/MainForm.resx b/v2rayN/v2rayN/Forms/MainForm.resx
index 1e8db31c..18ad432d 100644
--- a/v2rayN/v2rayN/Forms/MainForm.resx
+++ b/v2rayN/v2rayN/Forms/MainForm.resx
@@ -171,19 +171,19 @@
     <value>447, 22</value>
   </data>
   <data name="menuRemoveServer.Text" xml:space="preserve">
-    <value>Remove selected server (multiple choice) (Delete)</value>
+    <value>Remove selected servers (Delete)</value>
   </data>
   <data name="menuRemoveDuplicateServer.Size" type="System.Drawing.Size, System.Drawing">
     <value>447, 22</value>
   </data>
   <data name="menuRemoveDuplicateServer.Text" xml:space="preserve">
-    <value>Remove duplicate server</value>
+    <value>Remove duplicate servers</value>
   </data>
   <data name="menuCopyServer.Size" type="System.Drawing.Size, System.Drawing">
     <value>447, 22</value>
   </data>
   <data name="menuCopyServer.Text" xml:space="preserve">
-    <value>Copy selected server</value>
+    <value>Clone selected server</value>
   </data>
   <data name="menuSetDefaultServer.Size" type="System.Drawing.Size, System.Drawing">
     <value>447, 22</value>
@@ -231,25 +231,25 @@
     <value>447, 22</value>
   </data>
   <data name="menuPingServer.Text" xml:space="preserve">
-    <value>Test server ping (multiple choice) (Ctrl+P)</value>
+    <value>Test servers ping (Ctrl+P)</value>
   </data>
   <data name="menuTcpingServer.Size" type="System.Drawing.Size, System.Drawing">
     <value>447, 22</value>
   </data>
   <data name="menuTcpingServer.Text" xml:space="preserve">
-    <value>Test server tcping (multiple choice) (Ctrl+O)</value>
+    <value>Test servers with tcping (Ctrl+O)</value>
   </data>
   <data name="menuRealPingServer.Size" type="System.Drawing.Size, System.Drawing">
     <value>447, 22</value>
   </data>
   <data name="menuRealPingServer.Text" xml:space="preserve">
-    <value>Test server real ping (multiple choice) (Ctrl+R)</value>
+    <value>Test servers real delay (Ctrl+R)</value>
   </data>
   <data name="menuSpeedServer.Size" type="System.Drawing.Size, System.Drawing">
     <value>447, 22</value>
   </data>
   <data name="menuSpeedServer.Text" xml:space="preserve">
-    <value>Test server speed (multiple choice) (Ctrl+T)</value>
+    <value>Test servers download speed (Ctrl+T)</value>
   </data>
   <data name="toolStripSeparator6.Size" type="System.Drawing.Size, System.Drawing">
     <value>444, 6</value>
@@ -270,13 +270,13 @@
     <value>447, 22</value>
   </data>
   <data name="menuExport2ShareUrl.Text" xml:space="preserve">
-    <value>Batch export share URL to clipboard (multiple choice) (Ctrl+C)</value>
+    <value>Export share URLs to clipboard (Ctrl+C)</value>
   </data>
   <data name="menuExport2SubContent.Size" type="System.Drawing.Size, System.Drawing">
     <value>447, 22</value>
   </data>
   <data name="menuExport2SubContent.Text" xml:space="preserve">
-    <value>Batch export subscription content to clipboard (multiple choice)</value>
+    <value>Export subscription (base64) share to clipboard</value>
   </data>
   <data name="tsbServer.ImageTransparentColor" type="System.Drawing.Color, System.Drawing">
     <value>Magenta</value>
diff --git a/v2rayN/v2rayN/Forms/MainForm.zh-Hans.resx b/v2rayN/v2rayN/Forms/MainForm.zh-Hans.resx
index b8f6cebb..3ff52395 100644
--- a/v2rayN/v2rayN/Forms/MainForm.zh-Hans.resx
+++ b/v2rayN/v2rayN/Forms/MainForm.zh-Hans.resx
@@ -173,7 +173,7 @@
     <value>278, 22</value>
   </data>
   <data name="menuCopyServer.Text" xml:space="preserve">
-    <value>复制所选服务器</value>
+    <value>克隆所选服务器</value>
   </data>
   <data name="menuSetDefaultServer.Size" type="System.Drawing.Size, System.Drawing">
     <value>278, 22</value>
diff --git a/v2rayN/v2rayN/Forms/SubSettingForm.cs b/v2rayN/v2rayN/Forms/SubSettingForm.cs
index 14b5fbf6..25ac20e6 100644
--- a/v2rayN/v2rayN/Forms/SubSettingForm.cs
+++ b/v2rayN/v2rayN/Forms/SubSettingForm.cs
@@ -47,9 +47,8 @@ namespace v2rayN.Forms
                 }
             }
 
-            for (int k = 0; k < config.subItem.Count; k++)
+            foreach (var item in config.subItem)
             {
-                var item = config.subItem[k];
                 SubSettingControl control = new SubSettingControl();
                 control.OnButtonClicked += Control_OnButtonClicked;
                 control.subItem = item;
diff --git a/v2rayN/v2rayN/Handler/ConfigHandler.cs b/v2rayN/v2rayN/Handler/ConfigHandler.cs
index b8fd7971..28adbaa1 100644
--- a/v2rayN/v2rayN/Handler/ConfigHandler.cs
+++ b/v2rayN/v2rayN/Handler/ConfigHandler.cs
@@ -247,7 +247,7 @@ namespace v2rayN.Handler
         }
 
         /// <summary>
-        /// 复制服务器
+        /// 克隆服务器
         /// </summary>
         /// <param name="config"></param>
         /// <param name="index"></param>
diff --git a/v2rayN/v2rayN/Handler/SpeedtestHandler.cs b/v2rayN/v2rayN/Handler/SpeedtestHandler.cs
index 367b198b..dad221e8 100644
--- a/v2rayN/v2rayN/Handler/SpeedtestHandler.cs
+++ b/v2rayN/v2rayN/Handler/SpeedtestHandler.cs
@@ -72,9 +72,8 @@ namespace v2rayN.Handler
         {
             try
             {
-                for (int k = 0; k < _selecteds.Count; k++)
+                foreach (int index in _selecteds)
                 {
-                    int index = _selecteds[k];
                     if (_config.vmess[index].configType == (int)EConfigType.Custom)
                     {
                         continue;
@@ -141,9 +140,8 @@ namespace v2rayN.Handler
                 Thread.Sleep(5000);
 
                 var httpPort = _config.GetLocalPort("speedtest");
-                for (int k = 0; k < _selecteds.Count; k++)
+                foreach (int index in _selecteds)
                 {
-                    int index = _selecteds[k];
                     if (_config.vmess[index].configType == (int)EConfigType.Custom)
                     {
                         continue;
diff --git a/v2rayN/v2rayN/Handler/V2rayConfigHandler.cs b/v2rayN/v2rayN/Handler/V2rayConfigHandler.cs
index 8c3a81f3..ec3ecbc0 100644
--- a/v2rayN/v2rayN/Handler/V2rayConfigHandler.cs
+++ b/v2rayN/v2rayN/Handler/V2rayConfigHandler.cs
@@ -237,9 +237,9 @@ namespace v2rayN.Handler
                     rulesIP.outboundTag = tag;
                     rulesIP.ip = new List<string>();
 
-                    for (int k = 0; k < userRule.Count; k++)
+                    foreach (string u in userRule)
                     {
-                        string url = userRule[k].TrimEx();
+                        string url = u.TrimEx();
                         if (Utils.IsNullOrEmpty(url))
                         {
                             continue;
@@ -1424,9 +1424,8 @@ namespace v2rayN.Handler
 
 
                 var httpPort = configCopy.GetLocalPort("speedtest");
-                for (int k = 0; k < selecteds.Count; k++)
+                foreach (int index in selecteds)
                 {
-                    int index = selecteds[k];
                     if (configCopy.vmess[index].configType == (int)EConfigType.Custom)
                     {
                         continue;