noun · a physical cage or trap for animals, such as a basket, pit, or snare

这只受伤的苍鹰被关在牢笼里。

noun · figurative bonds or restraints, such as outdated ideas or societal misconceptions

那个年轻人渴望摆脱家庭的牢笼。

verb · to trap, shackle, or bring someone under one's control

那家公司试图用高薪牢笼核心技术人员。