diff --git a/src/ui/flutter/lib/engine/engine.dart b/src/ui/flutter/lib/engine/engine.dart
index 3ca138fb..bb9ba295 100644
--- a/src/ui/flutter/lib/engine/engine.dart
+++ b/src/ui/flutter/lib/engine/engine.dart
@@ -19,7 +19,7 @@
 
 import 'package:sanmill/mill/position.dart';
 
-enum EngineType { humanVsCloud, humanVsAi, humanVsHuman, aiVsAi }
+enum EngineType { humanVsAi, humanVsHuman, aiVsAi, humanVsCloud }
 
 class EngineResponse {
   final String type;
diff --git a/src/ui/flutter/lib/l10n/intl_en.arb b/src/ui/flutter/lib/l10n/intl_en.arb
index a85ddcde..4a51fadf 100644
--- a/src/ui/flutter/lib/l10n/intl_en.arb
+++ b/src/ui/flutter/lib/l10n/intl_en.arb
@@ -2,5 +2,21 @@
   "appName": "Mill Game",
   "@appName": {
     "description": "The App name"
+  },
+  "humanVsAi": "Human Vs AI",
+  "@humanVsAi": {
+    "description": "Human Vs AI"
+  },
+  "humanVsHuman": "Human Vs Human",
+  "@humanVsHuman": {
+    "description": "Human Vs Human"
+  },
+  "aiVsAi": "AI Vs AI",
+  "@aiVsAi": {
+    "description": "AI Vs AI"
+  },
+  "humanVsCloud": "Human Vs Cloud",
+  "@humanVsCloud": {
+    "description": "Human Vs Cloud"
   }
-}
\ No newline at end of file
+}
diff --git a/src/ui/flutter/lib/l10n/intl_zh.arb b/src/ui/flutter/lib/l10n/intl_zh.arb
index 33526006..9bd04a9f 100644
--- a/src/ui/flutter/lib/l10n/intl_zh.arb
+++ b/src/ui/flutter/lib/l10n/intl_zh.arb
@@ -1,3 +1,7 @@
 {
-  "appName": "直棋"
+  "appName": "直棋",
+  "humanVsAi": "人机对战",
+  "humanVsHuman": "双人对战",
+  "aiVsAi": "机器对战",
+  "humanVsCloud": "挑战云端"
 }
\ No newline at end of file
diff --git a/src/ui/flutter/lib/widgets/game_page.dart b/src/ui/flutter/lib/widgets/game_page.dart
index 978b695b..f9da38b5 100644
--- a/src/ui/flutter/lib/widgets/game_page.dart
+++ b/src/ui/flutter/lib/widgets/game_page.dart
@@ -21,6 +21,7 @@ import 'package:flutter/material.dart';
 import 'package:sanmill/engine/analyze.dart';
 import 'package:sanmill/engine/engine.dart';
 import 'package:sanmill/engine/native_engine.dart';
+import 'package:sanmill/generated/l10n.dart';
 import 'package:sanmill/main.dart';
 import 'package:sanmill/mill/game.dart';
 import 'package:sanmill/mill/mill.dart';
@@ -428,7 +429,13 @@ class _GamePageState extends State<GamePage> {
   }
 
   Widget createPageHeader() {
-    //
+    Map<EngineType, String> engineTypeToString = {
+      EngineType.humanVsAi: S.of(context).humanVsAi,
+      EngineType.humanVsHuman: S.of(context).humanVsHuman,
+      EngineType.aiVsAi: S.of(context).aiVsAi,
+      EngineType.humanVsCloud: S.of(context).humanVsCloud,
+    };
+
     final titleStyle =
         TextStyle(fontSize: 28, color: UIColors.darkTextPrimaryColor);
     final subTitleStyle =
@@ -448,11 +455,7 @@ class _GamePageState extends State<GamePage> {
               Expanded(child: SizedBox()),
               Hero(tag: 'logo', child: Image.asset('images/logo-mini.png')),
               SizedBox(width: 10),
-              Text(
-                  widget.engineType == EngineType.humanVsCloud
-                      ? '挑战云主机'
-                      : '人机对战',
-                  style: titleStyle),
+              Text(engineTypeToString[widget.engineType], style: titleStyle),
               Expanded(child: SizedBox()),
               IconButton(
                 icon:
diff --git a/src/ui/flutter/lib/widgets/main_menu.dart b/src/ui/flutter/lib/widgets/main_menu.dart
index 682638ec..95ea3d9e 100644
--- a/src/ui/flutter/lib/widgets/main_menu.dart
+++ b/src/ui/flutter/lib/widgets/main_menu.dart
@@ -121,29 +121,29 @@ class _MainMenuState extends State<MainMenu> with TickerProviderStateMixin {
           ),
           Expanded(child: SizedBox()),
           FlatButton(
-            child: Text('人机对战', style: menuItemStyle),
+            child: Text(S.of(context).humanVsAi, style: menuItemStyle),
             onPressed: () => navigateTo(GamePage(EngineType.humanVsAi)),
           ),
           Expanded(child: SizedBox()),
           FlatButton(
-            child: Text('双人对战', style: menuItemStyle),
+            child: Text(S.of(context).humanVsHuman, style: menuItemStyle),
             onPressed: () => navigateTo(GamePage(EngineType.humanVsHuman)),
           ),
           Expanded(child: SizedBox()),
           FlatButton(
-            child: Text('机器对战', style: menuItemStyle),
+            child: Text(S.of(context).aiVsAi, style: menuItemStyle),
             onPressed: () => navigateTo(GamePage(EngineType.aiVsAi)),
           ),
           Expanded(child: SizedBox()),
           Text(
-              '              健康游戏忠告\n'
-              '抵制不良游戏，拒绝盗版游戏。\n'
-              '注意自我保护，谨防受骗上当。\n'
-              '适度游戏益脑，沉迷游戏伤身。\n'
-              '合理安排时间，享受健康生活。',
+              '              ??????\n'
+              '??????,???????\n'
+              '??????,???????\n'
+              '??????,???????\n'
+              '??????,???????',
               style: TextStyle(color: Colors.black54, fontSize: 16)),
           Expanded(child: SizedBox()),
-          Text('Copyright © 2019-2020 The Sanmill Authors',
+          Text('Copyright � 2019-2020 The Sanmill Authors',
               style: TextStyle(color: Colors.black54, fontSize: 16)),
           Expanded(child: SizedBox()),
         ],