lifesaver

noun

1. 救助物；救命物
   a thing that helps sb in a difficult situation; sth that saves sb's life
2. 救助物；救命物
   a thing that helps sb in a difficult situation; sth that saves sb's life

1. N-COUNT （常指在健康方面）帮助解除困境之物
   If you say that something is a lifesaver, you mean that it helps people in a very important way, often in a way that is important to their health.
   1. The cervical smear test is a lifesaver.
      宫颈涂片检查能够帮上大忙。

1. The cervical smear test is a lifesaver.
   宫颈涂片检查能够帮上大忙。
2. Mike: You could be my lifesaver and help me then.
   迈克：你真是我的救命草，那么快帮帮我。
3. This one is a lifesaver of sorts, with the compiler deducing the proper type for a variable from its initializer expression.
   编译器能够根据变量的初始化器（initializer）表达式推导出正确的变量类型，这个特性可以节省时间。
4. If this happens, the fsck command can be a lifesaver!
   如果发生这种状况，那么fsck命令可以用来救急！
5. Ex: David wanted to be a lifesaver but he couldn't swim!
   戴维想当救生员，可他不会游泳！
6. No! You are not my lifesaver!
   你不是啦！
7. You are my lifesaver.
   你是我之“救命恩人”。
8. Thanks a lot, you are my lifesaver!
   非常谢谢，你是我的救星。
9. The girl was so impressed with my courage and bravery that she called me her hero and lifesaver.
   那女生对我的勇猛印象深刻，直说我是她的英雄救星。
10. The lifesaver for people who know what they want on the Internet.
    清楚自己在网上想要什么的人的好帮手。
11. Nephrology and Dialysis For Your PDA-Free medical downloads can be a real lifesaver for many people.
    肾脏透析你的PDA和免费医疗，可以下载很多人真正救人。
12. Trish: If it was a lifesaver then don't you think we deserve a little more?
    如果你是在说救命恩人，你不觉得我们得到的太少了么？
13. If you are unsure of what a sign means, or have any other questions about beach safety, ask the nearest surf lifesaver or lifeguard.
    如果你不明白某个标志的意思，或者有其它关于海滩安全的问题，请向海滩救生员询问。
14. Sanitation and hygiene: a cheap and highly effective lifesaver
    缓解卫生与个人卫生是挽救生命的廉价且极为有效的方法
15. The money that flows back from those who left, most often for Russia or Italy, is a lifesaver.
    从那些奔赴他乡（通常奔赴俄罗斯或意大利）的人寄回的钱都是救命钱。
16. Thanks for helping me move, you're a real lifesaver!
    感谢你帮我搬家，你真是我的救星。
17. SGML: A lifesaver in a sea of electronic documents
    SGML：在电子文档海洋中的救生圈

noun

1. a life preserver in the form of a ring of buoyant material

   Synonym:    life buoylife beltlife ring

2. an attendant employed at a beach or pool to protect swimmers from accidents

   Synonym:    lifeguard