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
Today I'm so happy; I found a new boyfriend.
今天我很高兴，我又找了个新男朋友。
Don't they believe it's necessary?
他们难道不认为它是必要的吗？
Sometimes I think this house will be knocked down by a passing plane.
有时我觉得这房子就要被一架飞过的飞机撞倒。