s. badly behaved
a. 顽皮的, 没规矩的, 不适当的, 下流的
1. The naughty boy didn't want to do his homework.
顽皮的男孩不想做作业。
2. She gave her dog a naughty look when he stole her sandwich.
当她的狗偷了她的三明治时，她给了它一个顽皮的眼神。
3. My little sister can be very naughty sometimes, especially at bedtime.
我的小妹妹有时候会很顽皮，尤其是在睡觉时间。