Stratifications
(stratification 的复数) n. 层化, 阶层的形成, 成层\\n[医] 分层
🗣️ 情景例句
I have a lost dog I'd like to bring to you.
我这儿有一只失散的狗，我想送来给你们。
I'm fed up with him.
我受够他了。
Do we have to wear the helmets?
我们得戴上防护帽吗？