Stratifications
(stratification 的复数) n. 层化, 阶层的形成, 成层\\n[医] 分层
🗣️ 情景例句
Sorry, Marilyn.
对不起 ，Marilyn 。
I'd like to change my reservation.
我想变更一下我的预订。
international standards of water treatment are usually followed at bottling plants.
装瓶厂通常遵循国际水处理的标准。