It also allows for easy note-taking and the online component allows for integrated tests, exercises and updates.

也可以用来轻松地做笔记和网上组件的综合测试，练习和内容更新。

youdao

It also allows for easy note-taking and the online component allows for integrated tests, exercises and updates.

也可以用来轻松地做笔记和网上组件的综合测试，练习和内容更新。

youdao