Rarefaction
n. 稀薄化, 稀薄\\n[医] 稀疏[状态], 疏松[状态]
✅ 同义词
🗣️ 情景例句
And here he is--Popo the Clown.
这位就是小丑Popo。
How long are you going to stay here?
你要在这里停留多久？
He goes to Chinese classes every week.
他每周都要去上汉语课。