牢头

hé běi yī kān shǒu suǒ de láo tóu mù qián zhèng zài jiē shòu diào chá

河北一看守所的牢头目前正在接受调查。

The head of a detention center in Hebei is under investigation.

gǔ dài de láo tóu shí fēn xiōng cán

古代的牢头十分凶残。

The jailer in ancient times was very cruel.

nǐ yào gěi láo tóu qián cái néng jìn qu jiàn fàn rén

你要给牢头钱，才能进去见犯人。

You have to pay the jailer money to go in and see the prisoner.