careful的副词：carefully。carefully意思是小心谨慎地；警惕地；仔细地；周密地。careful，作形容词时意为“仔细的，小心的”。
careful双语例句
We have to be careful with fire.
但我们用火时，我们应该小心。
So, we have to be careful.
那么我们必须小心。
Both should be careful.
两个人都应该小心。
carefully双语例句
Listen carefully to those questions.
仔细倾听他们的问题。
Engineers distinguish carefully between the two.
工程师们仔细区分这两者。
He looked carefully around the playground.
他仔细研究在操场上。
The pitch has been carefully chosen.
场地是经过仔细挑选的。
This region must be watched carefully.
必须对该地区谨慎关注。
She carefully monitored the ware house for problems.
她仔细地监控仓库，以防止问题出现。
