这类应用以文件资源共享为目的，为用户提供简便的文件交换服务。

The application aim at file sharing, provide convenient way for file exchange between users.

youdao

这类应用以文件资源共享为目的，为用户提供简便的文件交换服务。

The application aim at file sharing, provide convenient way for file exchange between users.

youdao