be careful of

基本解釋

Be careful of that ram —it butts you.
小心那只公羊，它會用角撞你。
It’s easy to think you will forget anyway, be careful of that thought.
如果你總是想著“我反正都會忘記的?！?那就要小心了。
Be careful of salesmen who call on the phone and offer to sell you land on the beach down in Florida.
這句話的意思是：“對那些通過電話來鼓動你買弗羅里達州靠海濱的土地的推銷員，你得十分小心。

For example, read copies of a group's financial records and be careful of groups with names that sound like well-known charities.
I love chemistry now. Be very careful what you say. Have any of you made that statement about hating a subject?
我現(xiàn)在很喜歡化學,所以你們說話的時候,可要小心咯？
麻省理工公開課 - 化學原理課程節(jié)選
So it's a way of reminding you, I've got to be careful about the types of things that I put in.
因此我這是在提醒你，一定要對輸入的東西的類型,多加注意。
麻省理工公開課 - 計算機科學及編程導論課程節(jié)選

The watchword here is be careful of bonds with high yields and scant information.
FORBES: Buffett Frets Over Municipals, So Should You