lifesaver

Sarah had been something of a lifesaver these past few days.

在过去的几天里，莎拉一直在救人所急。

When you're stuck in traffic, a mobile phone's an absolute life-saver.

堵车时，手机绝对是救命稻草。

Steven described his new job as a life saver for him and his wife Fiona – who has recently given birth to twins.

史蒂文将他的新工作描述为他和妻子菲奥娜的救命稻草——菲奥娜最近生了一对双胞胎。

Some doctors believe the test is a lifesaver.

有些医生认为这个测试是救星。

Your quick response in an emergency could be a life-saver for your child.

你在紧急情况下快速反应可能是你孩子的保命符。

Early detection of breast cancer is a life saver.

早发现是乳腺癌的救星。