牢

钉牢

dīng láo

to clinch (a nail)

陷入牢笼

xiàn rù láo lóng

to fall into a trap

亡羊补牢

wáng yáng bǔ láo

lit. to mend the pen after sheep are lost (idiom)

吃牢饭

chī láo fàn

(coll.) to serve time in prison; (Tw) (sarcastic) to live off the prison system (getting free meals)

嘴上没毛，办事不牢

zuǐ shàng méi máo , bàn shì bù láo

a youth without facial hair cannot be relied upon (proverb)

嘴上无毛，办事不牢

zuǐ shàng wú máo , bàn shì bù láo

see 嘴上沒毛，辦事不牢|嘴上没毛，办事不牢[zui3 shang4 mei2 mao2 , ban4 shi4 bu4 lao2]

嘴牢

zuǐ láo

tight-lipped

地牢

dì láo

prison

坐牢

zuò láo

to be imprisoned

坚牢

jiān láo

strong

大牢

dà láo

prison

太牢

tài láo

(in ancient times) sacrificial animal (cow, sheep or pig)