词性为副词，意思是仔细地，例如：
1.He read the letter more carefully the second time.他把信又更仔细地看了一遍。
2.We carefully labelled each item with the contents and the date.我们仔细地把每件物品用标签标明成分和日期。
3.We will study the report carefully before making a decision.我们将认真研究这份报告，然后再作决定。
adv.小心谨慎地；警惕地；仔细地；周密地
careful作形容词为 仔细的，小心的; 周到的; 慎; 心细; carefully为它的副词仔细地
careful形容词，修饰名词
例如：
You should be more careful with your money.
你花钱要慎重一些。
carefully副词，修饰动词
例如： Here, we must think carefully.
在这个问题上，我们必须仔细思考
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 lookedcarefullyaround the playground.他仔细研究在操场上。
The pitch has beencarefullychosen.场地是经过仔细挑选的
adv.仔细地; 小心翼翼的; 诚惶诚恐地; 颇有分寸地;。
