Infant mortality
婴儿死亡率
🧩 词语组成解析
infant
['ɪnfənt]
n. 婴儿，幼儿;未成年人;初学者，生手;
adj. 婴儿的，幼儿的;幼稚的，幼小的;初期的;未成年的;
in不 + fant=fans说话 →不能说话的 → adj.婴儿的
mortality
[mɔ:'tæliti]
n. 死亡数，死亡率;必死性，必死的命运;
🗣️ 情景例句
My wife, Marilyn Stewart, is a member of your program.
我太太Marily Stewart是你的学生。
The two parties involved in a contract have the obligation to execute the contract.
合同双方有义务履行合同。
is the slowest and has travelled round the earth through the surface rocks.
是最慢的，是围绕地球通过表面岩石传来的。