láo
亡羊补牢。
Wángyáng bǔláo.
Mend the fold after the sheep are lost (better late than never).
太牢（原指牛、羊、猪三牲，后也专指祭祀用的牛）。
tài láo (yuán zhǐ niú, yáng, zhū sān shēng, hòu yě zhuān zhǐ jì sì yòng de niú).
Tailao (originally referring to the three sacrificial animals: ox, sheep, and pig; later also specifically referring to the ox used in sacrifices).
监牢
jiān láo
prison; jail