小心阴沟里翻船，初级的课本很可能出现一些要命的生字。

Be careful, sometimes you may see some difficult words in Elementary level textbook.

youdao

小心阴沟里翻船，初级的课本很可能出现一些要命的生字。

Be careful, sometimes you may see some difficult words in Elementary level textbook.

youdao