Reading not only "words" on this eBook, it also provides video and audio to supply the content.

这本电子书不仅只有文字的阅读，还提供了影片、语音的内容辅助。

youdao

Reading not only "words" on this eBook, it also provides video and audio to supply the content.

这本电子书不仅只有文字的阅读，还提供了影片、语音的内容辅助。

youdao