life-saving
adjective (also lifesaving) uk/ˈlaɪfˌseɪ.vɪŋ/ us/ˈlaɪfˌseɪ.vɪŋ/
救命的
done to prevent someone from dying
She had a life-saving operation to remove a blood clot. 她进行了一个救命的手术，把一个血块摘除了。
the charity's life-saving work in Africa 慈善机构在非洲拯救生命的事业
life-saving
noun [ U ] uk/ˈlaɪfˌseɪ.vɪŋ/ us/ˈlaɪfˌseɪ.vɪŋ/
（对落水者的）救生术
actions that can save someone's life when they have fallen into water
a certificate in life-saving 救生证书