hostage
n
1 person held as a captive by one or more others who threaten to keep, harm or kill him unless certain demands are met 人質
The hijackers kept the pilot on board the plane as
(a) hostage. 劫機者把飛機駕駛員扣留在飛機上作為人質.
2 (idm 習語) a ,hostage to `fortune (fml 文) person or thing that one acquires and may then suffer by losing, esp a husband or wife or child 希望得到的但需蒙受可能失去之痛苦的人或事物(尤指配偶或子女). take/hold sb `hostage seize/keep sb as a hostage 抓住[扣押]某人作為人質
The gunman is holding two children hostage in the building. 持槍歹徒把兩個孩子扣押在這座建筑物里當作人質.