We must work hard at English.

我们应该努力学习英语。

youdao

English is becoming more and more important. We must work hard at it.

英语变得越来越重要了，我们必须努力学好它。

youdao

English is becoming more and more important. We must work hard at it.

英语变得越来越重要了，我们必须努力学好它。

youdao