careful的副词是carefully，含义是小心地，谨慎地；仔细地，认真地。

基本字义

carefully

英['keəfəlɪ] 美['kɛrfəli]

adv.小心地，谨慎地；仔细地，认真地

双语例句

1.We carefully watched every detail of his action.

我们仔细观察了他动作的每个细节。

2.I backed up carefully until I felt the wall against my back.

我小心翼翼地后退，直到感觉后背碰到了墙壁。

3.He studied the keyboard carefully, one finger poised.

他仔细研究了键盘，一个手指随时准备敲击。

4.He folded the paper carefully.

他把纸小心地折起来。

5.I am carefully selecting the breeding stock.

我正在精心挑选种畜。