flex transition, ref #329

components/flex/index.en-US.md

@@ -17,12 +17,12 @@ Support WEB, React-Native.
 
 Properties | Descrition | Type | Default
 -----------|------------|------|--------
-| direction    |   how flex items are placed in the flex container，value could be `row`,`row-reverse`,`column`,`column-reverse`,RN 仅支持`row`,`column`  | String  | `row` |
-| wrap    |  子元素的换行方式，可选`nowrap`,`wrap`,`wrap-reverse`,RN 仅支持`nowrap`,`wrap`  | String  | `nowrap` |
-| justify  | 子元素在主轴上的对齐方式，可选`start`,`end`,`center`,`between`,`around`    | String   | `start` |
-| align    | 子元素在交叉轴上的对齐方式，可选`start`,`center`,`end`,`baseline`,`stretch` RN仅支持`start`,`end`,`center`,`stretch`  | String   | `center` |
-| alignContent(`web only`) | 有多根轴线时的对齐方式，可选`start`,`end`,`center`,`between`,`around`,`stretch`    | String  | `stretch` |
+| direction    |   how flex items are placed in the flex container，value could be `row`,`row-reverse`,`column`,`column-reverse`,RN only support `row`,`column`  | String  | `row` |
+| wrap    |  the wrap way of sub-elements，option `nowrap`,`wrap`,`wrap-reverse`,RN only support `nowrap`,`wrap`  | String  | `nowrap` |
+| justify  | the way of alignment for sub-elements of main axis, option `start`,`end`,`center`,`between`,`around`    | String   | `start` |
+| align    | the way of alignment for sub-elements of cross-axis, option `start`,`center`,`end`,`baseline`,`stretch` RN only support `start`,`end`,`center`,`stretch`  | String   | `center` |
+| alignContent(`web only`) | the way of alignment when have multiple axes,  option `start`,`end`,`center`,`between`,`around`,`stretch`    | String  | `stretch` |
 
 ### Flex.Item
 
-Flex.Item 组件默认加上了样式`flex:1`,保证所有 item 平均分宽度, Flex 容器的 children 不一定是 Flex.Item
+Flex.Item component has style `flex:1` as default, ensure all items average division width, Flex container‘s children maybe not Flex.Item.