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 would like to buy some stamps, please.
我想买些邮票。
Of evil grain,no good seed can come.
坏谷无好种。
Best regards,
祝好！