Constringence
倒色散系数
🗣️ 情景例句
People don't ask unmarried people Why are you single?.
人们不会问未婚的人“你为什么不结婚？”。
To answer the first part of your question, I'd like to say that our studies were very extensive.
你问题的第一部分，我要说的就是我们的研究非常广泛。
Somebody's knocking at the door. I'll answer it.
有人在敲门，我去开。