Zd
n. 天顶距（zenith distance）；零色散（Zero Dispersion）
🗣️ 情景例句
You're a ... wonderful friend.
你是个……极好的朋友。
You must be crazy to go walking in such awful weather.
你一定是头脑发昏了，这么坏的天气还去散步。
What a great party! I really enjoyed it.
聚会好极了！我真喜欢。