lifesaver
Longman Dictionary of Contemporary English 5++LDOCE 5++life·sav·er /ˈlaɪfseɪvə $ -ər/ noun [countable] 1 HELPsomeone or something that helps you avoid a difficult or unpleasant situation 救星，帮助解决困难的人[物] A microwave oven can be a real lifesaver when you’re pressed for time. 时间紧迫时，微波炉真是个救星。2 someone or something that prevents you from dying 救命的人[物] The seat belt is the biggest single lifesaver in cars. 安全带是汽车里最重要的救命装备。3. DSSa lifeguard 救生员
Examples from the Corpus
lifesaver• His benefits as the spouse of an airline employee would be a lifesaver.• The company's day care service has been a lifesaver for many parents.• He kicked off, towing his burden like a lifesaver.• DeCicco calls the operation a lifesaver.• Surely such a conscientious accomplishment should prove a lifesaver for thousands of animals throughout the world.• Another lifesaver, BobWestcott, remained on duty at the station, but watched through his telescope.• This led into a couple of summers acting as a professional lifesaver during summer vacations from Sheffield University.• The camaraderie was a psychic lifesaver.• The seat belt is the biggest single lifesaver in cars.life·sav·er nounChineseSyllable
that difficult Corpus something avoid or helps a you someone
See Life Saver for more
lifesaver
life‧sav‧er /ˈlaɪfseɪvə $ -ər/
noun [countable]
1. someone or something that helps you avoid a difficult or unpleasant situation:
A microwave oven can be a real lifesaver when you’re pressed for time.
2. someone or something that prevents you from dying:
The seat belt is the biggest single lifesaver in cars.
3. a lifeguard
life‧sav‧er /ˈlaɪfseɪvə $ -ər/
noun [countable]1. someone or something that helps you avoid a difficult or unpleasant situation:
2. someone or something that prevents you from dying:
3. a lifeguard