life-saver

n (a) (Austral or NZ 澳或新西兰) life-guard 救生员. (b) thing that restores, benefits or is of great assistance 有助恢复、 有好处或大有助益的事: The clothes-dryer was a life-saver during the wet weather. 天气潮湿时乾衣机可帮了大忙了.

life, life annuity, life assurance, life insurance, life cycle, 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-saving, life-size, life-size, life-sized, life-span, life-style, life-support, life-time, life-work, lifebelt (also lifebuoy), lifeboat, lifeless, lifelessly, lifelessness, lifelike, lifeline, lifelong, lifer, lifestyle, lifetime, lift,