life-span

n length of time that sth is likely to live, continue or function 寿命; 生命期限; 使用期; 有效期: Some insects have a life-span of no more than a few hours. 有些昆虫寿命只有几小时.

life expectancy, Life Guards, life history, life interest, life peer, life sciences, life story, life work, life-and-death (also life-or-death), life-blood, life-boat, life-giving, life-guard, life-jacket, life-preserver, life-raft, life-saver, life-saving, life-size, life-size, life-sized, life-style, life-support, life-time, life-work, lifebelt (also lifebuoy), lifeboat, lifeless, lifelessly, lifelessness, lifelike, lifeline, lifelong, lifer, lifestyle, lifetime, lift, lift-attendant, lift-off, ligament, ligature,