你一定要学好英语。

You must study English well.

youdao

我的老师经常告诉我说：“你一定要学好英语，否则你就会有一个坏的生命，所以我想学好英语。”

My teacher often tells me 'you must study English well or you will have a bad life, so I want to study English well.

youdao

如果你想学好英语，那你一定要改变你的态度。

If you want to learn English well, you must change your attitude.

youdao

如果你想学好英语，那你一定要改变你的态度。

If you want to learn English well, you must change your attitude.

youdao