别惹她，她很淘气。

Bié rě tā, tā hěn táoqì.

Don't provoke her, she's very mischievous.

我的儿子很淘气。

Wǒde érzi hěn táoqì.

My son is very naughty.

那淘气的小孩真令人头疼。

Nà táoqì de xiǎohái zhēn lìng rén tóuténg.

That naughty kid is such a headache.