lifesaver的例句（lifesaver在句子中的用法）

• He thought of the old man as his lifesaver. 他把老人看作他的救命恩人。
• The new drug is a potential lifesaver. 这种新药有可能成为一种救命药。
• The cervical smear test is a lifesaver. 宫颈涂片检查能够帮上大忙。