This is a very small and very simple MP3 player, for beginners to learn how to use.

这是一个很小很简单的MP3播放器，适合初学者学习使用。

youdao

This is a very small and very simple MP3 player, for beginners to learn how to use.

这是一个很小很简单的MP3播放器，适合初学者学习使用。

youdao