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'll take the application and letter tomorrow when I come in.
明天我来的时候，会把申请表和推荐信带来。
He was so angry, he began to jump and down.
他愤怒得开始顿足。
None of us is afraid of difficulties.
我们当中没有一个人害怕困难。