将（某人）劫为人质
to capture someone to be a hostage
俘虏某人作为人质
释放人质
to allow a hostage to go free, often as a result of demands being met
允许人质自由离去，通常是要求得到满足的结果
扣押（某人）作为人质
to keep someone as a prisoner to force others to do something
将某人作为囚犯扣押，以迫使他人做某事
持续扣押（某人）作为人质
to continue to hold someone as a prisoner or hostage
继续将某人作为囚犯或人质扣押
劫持人质
to take people to be hostages suddenly and often violently
突然且通常是暴力地将人劫持为人质
解救人质
to set a hostage at liberty; to release them from captivity
使人质获得自由；将他们从囚禁中释放
营救人质
to save a hostage from a dangerous situation, typically involving force
从危险境地中救出人质，通常涉及武力
杀害人质
to cause the death of a hostage
导致人质死亡
处决人质
to kill a hostage, especially as a planned punishment
杀害人质，特别是作为有计划的惩罚