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
I know that I am.
我知道我是很喜欢。
If I buy that car, I'll have to use all my savings.
如果我要买那辆车的话，我必须用尽我的积蓄。
this little 'o' indicated that the train only stopped for mail.
这个标记表示列车是为装邮件而停车。