Zd
n. 天顶距（zenith distance）；零色散（Zero Dispersion）
🗣️ 情景例句
Where did you receive your master degree?
你在哪里获得硕士学位的？
We are thinking of expanding into the Chinese market.
我们想把生意扩大到中国市场。
The head office agreed to the lower price you asked for.
总公司已同意你要求的较低价格。