lifesaver

n.

救生者，水难救生员，济急的人；

复数：lifesavers

1. The new drug is a potential lifesaver.
   这种新药有可能成为一种救命药。
2. He thought of the old man as his lifesaver.
   他把老人看作他的救命恩人。
3. In the case of the Jacobses, that could be a lifesaver.
   对于雅各布斯一家人来说,这可能成为救命索。

Lifesaver
Lifesaver
Lifesaver
Roofer's lifesaver
Mdm2: p53's lifesaver?
Lifesavers and Samaritans: emergency use of cellular (mobile) phones in Australia.
Schoolchildren as lifesavers in Europe - training in cardiopulmonary resuscitation for children.
Vaccine: the controversial story of medicine's greatest lifesaver.
Implantable cardioverter-defibrillator. Lifesaver or a device looking for a disease?
Passport to promiscuity or lifesaver: press coverage of HPV vaccination and risky sexual behavior.