柯林斯词典lifesaver /ˈlaɪfseɪvə/ (lifesavers) 1. N-COUNT 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. 健康救星 The cervical smear test is a lifesaver. 宫颈涂片检查是健康救星。 返回 lifesaver