Rarefication
n. 变稀薄, 稀薄
🗣️ 情景例句
for his ten o'clock appointment with you.
等着十点钟与你的晤谈。
I don't have the figures, but I'll find out.
我没有这个数据，但我会找到的。
They were glad of the examination being over.
他们为考试结束了而高兴。