careful

小心的、谨慎的、当心的

Be careful with that knife; the blade is extremely sharp.

用那把刀时要小心，刀刃非常锋利。

仔细的、细心的、周密的

After a careful reading of the contract, she signed it.

仔细读过合约之后，她才签了名。

节省的、省著用的

He is careful with money and rarely eats out.

他用钱很节省，很少在外面吃饭。

注意的、留意的后接 to 或 that

Please be careful to lock the back door before leaving.

离开前请记得把后门锁好。

小心、当心口语

Careful! The floor over there is still wet.

小心，那边的地板还是湿的。