维拉有三个星期没上学，所以她得加紧用功，赶上班上的其他同学。

Vera missed three weeks of school she must work hard to catch up with the class.

youdao

维拉有三个星期没上学，所以她得加紧用功，赶上班上的其他同学。

Vera missed three weeks of school she must work hard to catch up with the class.

youdao