小孩子们总是喜欢捣乱。
xiǎoháizǐ mén zǒngshì xǐhuān dǎoluàn 。
The children always like to stir up trouble.
在课堂上,你们不要捣乱。
zài kètáng shàng , nǐmen búyào dǎoluàn 。
In class, you should not disturb the lesson.
他常常捣乱,让人很烦恼。
tā chángcháng dǎoluàn , ràng rén hěn fánnǎo 。
He often causes trouble, which makes people very annoyed.