请输入您要查询的英文单词：
单词
lifesaver
释义
lifesaver
NOUN
C
/ˈlaɪfˌseɪvə/
1
something that prevents someone from being killed 防止（某人）被杀的东西
1a
a person or thing that gets someone out of a difficult situation 帮助脱离困境的人（或物）；救星
2
AUSTRALIAN a lifeguard