1、
2、
They can hold user group, provide application of specific aim business, achieve good progress.
它们能抓住用户群体, 提供针对性业务应用, 获得良好发展.
互联网摘选
3、
4、
Wich the help of his teacher and classmates, Peter has made good progress.
在老师和同学帮助下, 彼得取得很大进步.
互联网摘选
