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”。
扩展资料
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。
