Stratifications
(stratification 的复数) n. 层化, 阶层的形成, 成层\\n[医] 分层
🗣️ 情景例句
She always reminds him of Grandma. Susan
总是让他想起奶奶。
I was at home all afternoon.
我整个下午在家。
but it was impossible to stop the thieves.
但他已无法抓住那些窃贼了。