prisoner/'prɪzənər $ -nər/

n. a person who is in prison

n. [C] 囚犯，犯人：Five prisoners escaped from a jail. 有5个囚犯从一个监狱里逃跑了。

be taken (或held) prisoner

构词prison + -er

被俘：Several soldiers were taken prisoner. 好几名士兵被俘。