mortalityKK [mɔrˋtæləti] /mɔɹˈtæləti/发音名词1死亡率Infant mortality has dropped sharply over the past two decades.过去二十年来,婴儿死亡率大幅下降。2必死、终将一死正式A serious illness forced him to confront his own mortality.一场重病让他不得不面对自己终将一死的事实。3死亡人数The storm caused heavy mortality among young seabirds.这场暴风雨造成大量幼年海鸟死亡。用这个字练口说→