You want to be very careful not to have a man like Crevecoeur for an enemy.

你必须非常小心，不要与像克雷弗克那样的人为敌。

《柯林斯英汉双解大词典》

We have to be very careful.

我们必须非常谨慎。

youdao

You have to be very careful of traffic in Beijing.

在北京的车流中你要非常小心。

youdao

"We really do have to be very careful about trying people in civil courts, in giving them a status beyond what is wanted,".

VOA: standard.2010.01.30

In order to have a completely balanced diet that's completely plant based, one has to be very careful about having a wide array of foods.

为了形成一个完全以素食为主的,平衡饮食结构,你必须非常注意,广泛摄入各类食物

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

This is why the fourth floor of Payne Whitney Gym is such a dangerous place and I urge you as your dean to be very careful there. Okay?

这就是为什么佩恩·惠特尼健身馆四楼,和危险的原因,作为院长，我劝你们,要十分小心？

耶鲁公开课 - 心理学导论课程节选

Secondly, international cricket is going to have to be very careful it doesn't lose its integrity.

BBC: Justin Langer column

"I think we have got to be very careful about anything like this, " he said.

BBC: Norfolk PCC Stephen Bett: 'Scrap some speed limits'

"You have to push the limit, but you have to be very careful, " he says.

CNN: Middle Eastern youth find comic relief through stand-up