Rarefactions
(rarefaction 的复数) n. 稀薄化, 稀薄\\n[医] 稀疏[状态], 疏松[状态]
🗣️ 情景例句
Thanks. And what about your family?
谢谢。那你的家庭呢
Better luck next time.
下次好运吧！
I had a seat beside the window.
我的座位在窗口旁