docs: update translation

components/button/demo/button-group.md

@@ -13,9 +13,9 @@ title:
 
 ## en-US
 
-If we put several `Button` into `Button.Group`, they will become a button group.
+Buttons can be grouped by placing multiple `Button` components into a `Button.Group`.
 
-Set `size` as `large` or `small` or nothing, we will get large/small/defualt button group respectively.
+The `size` can be set to `large`, `small` or left unset resulting in a default size.
 
 ````jsx
 import { Button, Icon } from 'antd';

components/button/demo/disabled.md

@@ -11,7 +11,7 @@ title:
 
 ## en-US
 
-Set `disabled` to `Button`, and then it will be disabled.
+To mark a button as disabled, add the `disabled` property to the `Button`.
 
 ````jsx
 import { Button } from 'antd';

components/button/demo/icon.md

@@ -7,11 +7,15 @@ title:
 
 ## zh-CN
 
-`Button` 内可以嵌套图标，图标可以放在文字前、后，也可以单独存在。
+当需要在 `Button` 内嵌入 `Icon` 时，可以设置 `icon` 属性，或者直接在 `Button` 内使用 `Icon` 组件。
+
+如果想控制 `Icon` 具体的位置，只能直接使用 `Icon` 组件，而非 `icon` 属性。
 
 ## en-US
 
-`Button` works fine with `Icon`, just set `icon` property or put `Icon` component in `Button`
+`Button` components can contain an `Icon`. This is done by setting the `icon` property or placing an `Icon` component within the `Button`
+
+If you want specific control over the positioning and placement of the `Icon`, then that should be done by placing the `Icon` component within the `Button` rather than using the `icon` property.
 
 ````jsx
 import { Button, Icon } from 'antd';

components/button/demo/loading.md

@@ -11,7 +11,7 @@ title:
 
 ## en-US
 
-Set `loading` to `Button`, and then it will become loading button.
+A loading indicator can be added to a button by setting the `loading` property on the `Button`.
 
 ````jsx
 import { Button } from 'antd';

components/button/demo/size.md

@@ -13,9 +13,9 @@ title:
 
 ## en-US
 
-Thers are large button, default button and small button in antd.
+Ant Design supports a default button size as well as a large and small size.
 
-To get large/small button, just set `size` as `large`/`small`. If nothing is provided to `size`, we will get default button.
+If a large or small button is desired, set the `size` property to either `large` or `small` respectively. Omit the `size` property for a button with the default size.
 
 ````jsx
 import { Button } from 'antd';

components/button/index.en-US.md

@@ -24,7 +24,7 @@ size | can be set as `small` `large` or nothing | string | `default`
 loading | to set the loading status of button | boolean | false
 onClick | set the handler to handle `click` event | function | -
 
-`<Button>Hello world!</Button>` will be rendered into `<button>Hello world!</button>`, and all the properties which are not listed above will be transfered to `<button />`.
+`<Button>Hello world!</Button>` will be rendered into `<button>Hello world!</button>`, and all the properties which are not listed above will be transferred to the `<button>` tag.
 
 <style>
 [id^="components-button-demo-"] .ant-btn {