diff --git a/mock/article.js b/mock/article.js
index 45b75296..bc236eb9 100644
--- a/mock/article.js
+++ b/mock/article.js
@@ -3,7 +3,7 @@ import Mock from 'mockjs'
 const List = []
 const count = 100
 
-const baseContent = '<p>我是测试数据我是测试数据</p><p><img src="https://wpimg.wallstcn.com/4c69009c-0fd4-4153-b112-6cb53d1cf943"></p>'
+const baseContent = '<p>I am testing data, I am testing data.</p><p><img src="https://wpimg.wallstcn.com/4c69009c-0fd4-4153-b112-6cb53d1cf943"></p>'
 const image_uri = 'https://wpimg.wallstcn.com/e4558086-631c-425c-9430-56ffb46e70b3'
 
 for (let i = 0; i < count; i++) {
diff --git a/src/components/BackToTop/index.vue b/src/components/BackToTop/index.vue
index c094037f..36522f4a 100644
--- a/src/components/BackToTop/index.vue
+++ b/src/components/BackToTop/index.vue
@@ -1,12 +1,7 @@
 <template>
   <transition :name="transitionName">
     <div v-show="visible" :style="customStyle" class="back-to-ceiling" @click="backToTop">
-      <svg width="16" height="16" viewBox="0 0 17 17" xmlns="http://www.w3.org/2000/svg" class="Icon Icon--backToTopArrow" aria-hidden="true" style="height: 16px; width: 16px;">
-        <title>回到顶部</title>
-        <g>
-          <path d="M12.036 15.59c0 .55-.453.995-.997.995H5.032c-.55 0-.997-.445-.997-.996V8.584H1.03c-1.1 0-1.36-.633-.578-1.416L7.33.29c.39-.39 1.026-.385 1.412 0l6.878 6.88c.782.78.523 1.415-.58 1.415h-3.004v7.004z" fill-rule="evenodd" />
-        </g>
-      </svg>
+      <svg width="16" height="16" viewBox="0 0 17 17" xmlns="http://www.w3.org/2000/svg" class="Icon Icon--backToTopArrow" aria-hidden="true" style="height:16px;width:16px"><path d="M12.036 15.59a1 1 0 0 1-.997.995H5.032a.996.996 0 0 1-.997-.996V8.584H1.03c-1.1 0-1.36-.633-.578-1.416L7.33.29a1.003 1.003 0 0 1 1.412 0l6.878 6.88c.782.78.523 1.415-.58 1.415h-3.004v7.004z" /></svg>
     </div>
   </transition>
 </template>
diff --git a/src/components/JsonEditor/index.vue b/src/components/JsonEditor/index.vue
index 81715f5d..e19ad683 100644
--- a/src/components/JsonEditor/index.vue
+++ b/src/components/JsonEditor/index.vue
@@ -16,7 +16,6 @@ import 'codemirror/addon/lint/json-lint'
 
 export default {
   name: 'JsonEditor',
-  /* eslint-disable vue/require-prop-types */
   props: ['value'],
   data() {
     return {
diff --git a/src/components/Kanban/index.vue b/src/components/Kanban/index.vue
index c2cb4691..82f7dd7e 100644
--- a/src/components/Kanban/index.vue
+++ b/src/components/Kanban/index.vue
@@ -15,6 +15,7 @@
     </draggable>
   </div>
 </template>
+
 <script>
 import draggable from 'vuedraggable'
 
diff --git a/src/components/ThemePicker/index.vue b/src/components/ThemePicker/index.vue
index 0a556248..94094fde 100644
--- a/src/components/ThemePicker/index.vue
+++ b/src/components/ThemePicker/index.vue
@@ -8,7 +8,6 @@
 </template>
 
 <script>
-
 const version = require('element-ui/package.json').version // element-ui version from node_modules
 const ORIGINAL_THEME = '#409EFF' // default color
 import defaultSettings from '@/settings'
diff --git a/src/components/Tinymce/components/EditorImage.vue b/src/components/Tinymce/components/EditorImage.vue
index b3a4a2be..d4a98e84 100644
--- a/src/components/Tinymce/components/EditorImage.vue
+++ b/src/components/Tinymce/components/EditorImage.vue
@@ -1,7 +1,7 @@
 <template>
   <div class="upload-container">
     <el-button :style="{background:color,borderColor:color}" icon="el-icon-upload" size="mini" type="primary" @click=" dialogVisible=true">
-      上传图片
+      upload
     </el-button>
     <el-dialog :visible.sync="dialogVisible">
       <el-upload
@@ -16,14 +16,14 @@
         list-type="picture-card"
       >
         <el-button size="small" type="primary">
-          点击上传
+          Click upload
         </el-button>
       </el-upload>
       <el-button @click="dialogVisible = false">
-        取 消
+        Cancel
       </el-button>
       <el-button type="primary" @click="handleSubmit">
-        确 定
+        Confirm
       </el-button>
     </el-dialog>
   </div>
@@ -54,7 +54,7 @@ export default {
     handleSubmit() {
       const arr = Object.keys(this.listObj).map(v => this.listObj[v])
       if (!this.checkAllSuccess()) {
-        this.$message('请等待所有图片上传成功 或 出现了网络问题，请刷新页面重新上传！')
+        this.$message('Please wait for all images to be uploaded successfully. If there is a network problem, please refresh the page and upload again!')
         return
       }
       this.$emit('successCBK', arr)
diff --git a/src/components/Upload/SingleImage.vue b/src/components/Upload/SingleImage.vue
index ecec20a9..d16bbf37 100644
--- a/src/components/Upload/SingleImage.vue
+++ b/src/components/Upload/SingleImage.vue
@@ -26,7 +26,6 @@
 </template>
 
 <script>
-// 预览效果见付费文章
 import { getToken } from '@/api/qiniu'
 
 export default {
diff --git a/src/directive/el-table/adaptive.js b/src/directive/el-table/adaptive.js
index 3fa29c91..8beacff1 100644
--- a/src/directive/el-table/adaptive.js
+++ b/src/directive/el-table/adaptive.js
@@ -1,4 +1,3 @@
-
 import { addResizeListener, removeResizeListener } from 'element-ui/src/utils/resize-event'
 
 /**
diff --git a/src/directive/el-table/index.js b/src/directive/el-table/index.js
index d4cf406d..d3d45150 100644
--- a/src/directive/el-table/index.js
+++ b/src/directive/el-table/index.js
@@ -1,4 +1,3 @@
-
 import adaptive from './adaptive'
 
 const install = function(Vue) {
diff --git a/src/directive/permission/permission.js b/src/directive/permission/permission.js
index 1fc8f136..b27f24da 100644
--- a/src/directive/permission/permission.js
+++ b/src/directive/permission/permission.js
@@ -1,4 +1,3 @@
-
 import store from '@/store'
 
 export default {
diff --git a/src/filters/index.js b/src/filters/index.js
index 86e768d8..051000c1 100644
--- a/src/filters/index.js
+++ b/src/filters/index.js
@@ -1,4 +1,4 @@
-// set function parseTime,formatTime to filter
+// import parseTime, formatTime and set to filter
 export { parseTime, formatTime } from '@/utils'
 
 /**
diff --git a/src/router/modules/components.js b/src/router/modules/components.js
index 75b161eb..0d8055bd 100644
--- a/src/router/modules/components.js
+++ b/src/router/modules/components.js
@@ -1,4 +1,4 @@
-/** When your routing table is too long, you can split it into small modules**/
+/** When your routing table is too long, you can split it into small modules **/
 
 import Layout from '@/layout'
 
diff --git a/src/router/modules/nested.js b/src/router/modules/nested.js
index ee165c8c..c52664c9 100644
--- a/src/router/modules/nested.js
+++ b/src/router/modules/nested.js
@@ -1,4 +1,4 @@
-/** When your routing table is too long, you can split it into small modules**/
+/** When your routing table is too long, you can split it into small modules **/
 
 import Layout from '@/layout'
 
diff --git a/src/router/modules/table.js b/src/router/modules/table.js
index 59f0da1d..d8e50302 100644
--- a/src/router/modules/table.js
+++ b/src/router/modules/table.js
@@ -1,4 +1,4 @@
-/** When your routing table is too long, you can split it into small modules**/
+/** When your routing table is too long, you can split it into small modules **/
 
 import Layout from '@/layout'
 
diff --git a/src/store/modules/permission.js b/src/store/modules/permission.js
index 820ca46b..bd35252c 100644
--- a/src/store/modules/permission.js
+++ b/src/store/modules/permission.js
@@ -1,7 +1,7 @@
 import { asyncRoutes, constantRoutes } from '@/router'
 
 /**
- * 通过meta.role判断是否与当前用户权限匹配
+ * Use meta.role to determine if the current user has permission
  * @param roles
  * @param route
  */
@@ -14,7 +14,7 @@ function hasPermission(roles, route) {
 }
 
 /**
- * 递归过滤异步路由表，返回符合用户角色权限的路由表
+ * Filter asynchronous routing tables by recursion
  * @param routes asyncRoutes
  * @param roles
  */
diff --git a/src/styles/element-ui.scss b/src/styles/element-ui.scss
index 494dcfa4..9422dd18 100644
--- a/src/styles/element-ui.scss
+++ b/src/styles/element-ui.scss
@@ -1,4 +1,4 @@
-//覆盖一些element-ui样式
+// cover some element-ui styles
 
 .el-breadcrumb__inner,
 .el-breadcrumb__inner a {
diff --git a/src/styles/sidebar.scss b/src/styles/sidebar.scss
index 525a65b9..e55f8656 100644
--- a/src/styles/sidebar.scss
+++ b/src/styles/sidebar.scss
@@ -1,6 +1,5 @@
 #app {
 
-  // 主体区域 Main container
   .main-container {
     min-height: 100%;
     transition: margin-left .28s;
@@ -8,7 +7,6 @@
     position: relative;
   }
 
-  // 侧边栏 Sidebar container
   .sidebar-container {
     transition: width 0.28s;
     width: $sideBarWidth !important;
@@ -22,7 +20,7 @@
     z-index: 1001;
     overflow: hidden;
 
-    //reset element-ui css
+    // reset element-ui css
     .horizontal-collapse-transition {
       transition: 0s width ease-in-out, 0s padding-left ease-in-out, 0s padding-right ease-in-out;
     }
@@ -149,7 +147,7 @@
     min-width: $sideBarWidth !important;
   }
 
-  // 适配移动端, Mobile responsive
+  // mobile responsive
   .mobile {
     .main-container {
       margin-left: 0px;
diff --git a/src/styles/transition.scss b/src/styles/transition.scss
index 7b5e4bfd..4cb27cc8 100644
--- a/src/styles/transition.scss
+++ b/src/styles/transition.scss
@@ -1,6 +1,6 @@
-//global transition css
+// global transition css
 
-/*fade*/
+/* fade */
 .fade-enter-active,
 .fade-leave-active {
   transition: opacity 0.28s;
@@ -11,7 +11,7 @@
   opacity: 0;
 }
 
-/*fade-transform*/
+/* fade-transform */
 .fade-transform-leave-active,
 .fade-transform-enter-active {
   transition: all .5s;
@@ -27,7 +27,7 @@
   transform: translateX(30px);
 }
 
-/*breadcrumb transition*/
+/* breadcrumb transition */
 .breadcrumb-enter-active,
 .breadcrumb-leave-active {
   transition: all .5s;
diff --git a/src/styles/variables.scss b/src/styles/variables.scss
index 98d7b672..a19c27c1 100644
--- a/src/styles/variables.scss
+++ b/src/styles/variables.scss
@@ -8,10 +8,10 @@ $tiffany: #4AB7BD;
 $yellow:#FEC171;
 $panGreen: #30B08F;
 
-//sidebar
+// sidebar
 $menuText:#bfcbd9;
 $menuActiveText:#409EFF;
-$subMenuActiveText:#f4f4f5; //https://github.com/ElemeFE/element/issues/12951
+$subMenuActiveText:#f4f4f5; // https://github.com/ElemeFE/element/issues/12951
 
 $menuBg:#304156;
 $menuHover:#263445;
diff --git a/src/views/components-demo/back-to-top.vue b/src/views/components-demo/back-to-top.vue
index 1404f574..9bc23266 100644
--- a/src/views/components-demo/back-to-top.vue
+++ b/src/views/components-demo/back-to-top.vue
@@ -113,8 +113,7 @@
       <div>placeholder</div>
       <div>placeholder</div>
     </div>
-    <!--可自定义按钮的样式、show/hide临界点、返回的位置  -->
-    <!--如需文字提示，可在外部添加element的<el-tooltip></el-tooltip>元素  -->
+    <!-- you can add element-ui's tooltip -->
     <el-tooltip placement="top" content="tooltip">
       <back-to-top :custom-style="myBackToTopStyle" :visibility-height="300" :back-position="50" transition-name="fade" />
     </el-tooltip>
@@ -129,6 +128,7 @@ export default {
   components: { BackToTop },
   data() {
     return {
+      // customizable button style, show/hide critical point, return position
       myBackToTopStyle: {
         right: '50px',
         bottom: '50px',