David wanted to be a lifesaver but he couldn't swim!

戴维想当救生员，可他不会游泳！

youdao

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！

youdao

For countries experiencing rapid population growth, it could be a lifesaver.

对于正在经历人口迅速增长的国家来说，这可能是救命的方法。

youdao

So it's a wonderful vehicle and it's going to be a lifesaver,".

VOA: standard.2009.11.02

"This vehicle here will similarly be a lifesaver in Afghanistan,"

VOA: standard.2009.11.02

Even with the risks of an operation factored in, bariatric surgery can be a lifesaver, particularly for people who are very obese.

CNN: Weight-loss surgery safe, but sleep apnea increases risk

Any one of them could be a lifesaver.

FORBES: A hail of silver bullets

The cello turned out to be a lifesaver.

WSJ: Cello's Golden Age Comes to a Close | J��nos Starker | By Stuart Isacoff