老兄

nǐ lǎo xiōng kě zhēn xíng

你老兄可真行！

Man, you're great!

lǎo xiōng bù yào pèng tā

老兄，不要碰它。

Don't touch it, brother.

bié chén bù zhù qì lǎo xiōng

别沉不住气，老兄。

Don't lose your cool, man.