Cdh
abbr. constant differential height 常微分顶点
🗣️ 情景例句
Why are you interested in working with this company?
你为什么对在本公司工作感兴趣？
The phone seems to be out of order.
电话好像出故障了。
That's right. And the air today is nice and clean.
对。今天空气很清新。