the situation in which a person or animal is kept somewhere and is not allowed to leave

All the hostages, when released from captivity, looked remarkably fit and well. 人质被释放时看上去居然都很健康。

Animals bred in captivity would probably not survive if they were released into the wild. 在樊笼里饲养的动物如果被放归到野生环境中很可能无法生存。