勤奋是一条神奇的线，用它可以串起无数知识的珍珠。

Diligence is a magical line, can use it on countless pearls of knowledge.

youdao

勤奋是一条神奇的线，用它可以串起无数知识的珍珠。

Diligence is a magical line, can use it on countless pearls of knowledge.

youdao