lifesaving/ˈlaɪfˌseɪ.vɪŋ/名词(对落水者的)救生术a certificate in life-saving救生证书/ˈlaɪfˌseɪ.vɪŋ/形容词救命的the charity's life-saving work in Africa慈善机构在非洲拯救生命的事业想跟读,去练习