I think you should be careful about talking of the rebels as heroes.

我认为你还是当心点好，别把叛乱分子说成是英雄。

《柯林斯英汉双解大词典》

You should be careful about how to talk with them.

你应该要注意与他们交谈的方式。

youdao

Something else they need to be careful about is medicines.

他们还需要注意的是药物。

youdao

And be careful about stalagmites you might trip over one on the floor.

VOA: special.2009.12.07

So it's a way of reminding you, I've got to be careful about the types of things that I put in.

因此我这是在提醒你，一定要对输入的东西的类型,多加注意。

麻省理工公开课 - 计算机科学及编程导论课程节选

The message I'm trying to get to here, because I'm running you right up against time, is I have to be careful about what's a primitive step.

我想说的事情是，因为我正在跟大家讲算法时间复杂度，我们需要注意一个基本步骤的定义,如果我可以假设。

麻省理工公开课 - 计算机科学及编程导论课程节选

The embassy is warning Americans in France to be careful about speaking English on the streets.

CNN: Attacks spark global red alert

In other words, founders should be careful about taking large amounts of VC money.

FORBES: The IPO Curse

Brown said he had to be careful about getting rescue teams to the site earlier.

CNN: FEMA chief: Victims bear some responsibility