非美国人也一定要做好失望的准备。

Non-Americans must also brace for disappointment.

youdao

一定要做好个人卫生。

Make sure you have good hygiene.

youdao

首先，我们一定要做好搬家服务，树立良好的口碑。

First of all, we must do a good job moving service, establish a good reputation.

youdao

It's saying, "Remember, check it out, you want to do this and think about it carefully."

它是指，“记住，一定要好好确认，你需要把它做好，仔细考虑一下。”

Make sure 课堂 - SpeakingMax英语口语达人