打闹

tā liǎ cháng wèi zhī ma dà xiǎo de shì dǎ nào

他俩常为芝麻大小的事打闹。

Those two are always fighting over nothing.

qǐng bié dǎ nào

请别打闹。

No horseplay.

nǐ men liǎng gè bié dǎ nào le

你们两个别打闹了！

Quit roughhousing, you two!

rú guǒ tā men shì liǎng gè jiē tóu de xiǎo nán hái tā men jiù huì pū shàng qù dǎ nào qǐ lai

如果他们是两个街头的小男孩，他们就会扑上去打闹起来。

If they had been two little street boys they would have sprung at each other and had a rough-and-tumble fight.