careful的副词形式是carefully。
carefully
adv. 小心地
例句
She put the glass down carefully.
她小心翼翼地放下玻璃杯。
I listened carefully to her story.
我认真听了她说的情况。
Salvatore combed his hair carefully.
萨尔瓦多仔细地梳理了他的头发。
Every note was carefully articulated.
每个音都唱得很认真，很清楚。
We compared the two reports carefully.
我们仔细地比较了两个报告。
