Be careful out there and always pay attention to your surroundings.

所以一定要留意，始终注意周围的环境。

youdao

Don't stay out in the sun for too long—you can't be too careful.

别在太阳底下待得太久，你得尽量小心。

《牛津词典》

If you want to find out the truth, you should be careful enough.

如果你想找出真相，你应该非常小心。

youdao

Just be careful not to let the cat out of the bag, or someone may leave you holding the bag.

VOA: special.2009.01.25

And I can solve them, and if I solve them out, I'm going to get something like, let me just be careful, I'm going to get something like: 1 minus B S1* is equal to 1, or S1* equals S2* is equal to 1 over .

我们都会解这个方程,如果解完方程,我们会得到,我得仔细点别算错,我们会得到,1-BS1*=1,或S1*=S2*=1/

耶鲁公开课 - 博弈论课程节选

People in business have to be careful if they are to survive the jungle out there.

VOA: special.2010.05.16

This year-end in particular, be careful out there.

FORBES: Year-End Tax Planning Despite The Cliff

This year-end, be careful out there.

FORBES: Tea Leaves And Tax Moves At Turkey Time

Be careful out there, Robin.

NEWYORKER: Tenth of December