You should be cautious when getting involved and test the water before committing yourself.

当你涉足其中时你应该小心谨慎，在表态之前要先行试探。

《柯林斯英汉双解大词典》

Hereafter, we must be cautious how we vex her.

从今以后，我们一定要小心不去惹她了。

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He urged anyone traveling to the border cities of Tijuana and Ciudad Juarez to be cautious.

VOA: standard.2009.04.12

That means it was something I didn't understand. So I'm going to be cautious and systematic.

这就意味着代码中有一些,我没有理解的东西，因此我需要谨慎,并且系统化的去寻找这个错误。

麻省理工公开课 - 计算机科学及编程导论课程节选

The Second Brother, you'll remember, had taken what I take to be the perfectly reasonable position, the cautious position, that the Lady is in danger - that she's a sitting duck, in fact, out there in the dangerous forest.

戏中的弟弟，你们记得，采取了,我认为非常合理的立场，小心谨慎的立场，他认为那位少女处于危险的境地,-她只身于危险的丛林之中，极易受到伤害。

耶鲁公开课 - 弥尔顿课程节选

Traders may have further reason be cautious about euro-area equities in the coming year.

FORBES: Magazine Article

In fact, there are many reasons to be cautious about expecting Arabs to follow Turks.

ECONOMIST: The Turkish model

"We'll be cautious in scheduling matches during the rainy season, " said BCCI secretary Niranjan Shah.

BBC: SPORT | Cricket | India rain prompts dates re-think