顽皮

It was naughty of you to pull the cat's tail.

猫的尾巴太皮了。

She wore on her face an amused look.

她脸上带着皮的神情。

She smiled impishly and didn't look up.

她皮笑着，没有仰视。

It is naughty of you to pull your baby sister's hair.

妹妹的头发真是皮。

After the horseplay by the wicked students, the classroom floor was strewn with crumbled chalk dust.

那班皮学生闹著玩儿，捏碎不少，后，教室地板上撒满了灰。