be careful

基本解释

But be careful--mine was so successful it's now mandatory on all our family vacations.
不過要小心——我的偵察跑是成功的，現在我家出門休假都要進行。
If your spouse helps people or touches them for a living, be careful -- you might be headed for a divorce.
如果你的伴侶從事的職業是幫助或者接觸別人，小心了——你或許正在曏著離婚邁進。
You are one fearless fish! But be careful -- remember, you can swim your own way, but don't forget it's your company's ocean.
你是一條無所畏懼的魚，但是要小心——記住，你可以遊自己的路，但是別忘記是在公司這個大洋裡。

For example, read copies of a group's financial records and be careful of groups with names that sound like well-known charities.
So these strategies -- let's be careful here with the word weakly here -- these strategies are not weakly dominated in the original game.
所以這些策略,對於這裡的弱一詞,我們要謹慎對待,這些策略在原博弈中竝不是弱劣勢的
耶魯公開課 - 博弈論課程節選
That's why it's all in French, because it's not copyrighted, and we have to be careful with that in here with these camera rolling--cameras rolling.
都是法文,因爲沒有相關版權,而且我們必須得特別小心,何況我們還在錄像
耶魯公開課 - 聆聽音樂課程節選

But be careful--one technical glitch and this satellite imagery stock could fall out of orbit.
FORBES: In The Beltway Orbit: GeoEye