Wadeite
钾钙板锆石
🗣️ 情景例句
Paper or plastic?
现金还是信用卡？
It's foggy this afternoon.
今天下午雾很大。
The cave might never have been discovered has not the entrance been spotted by the distinguished French pot-holer, Berger.
若不是法国著名洞穴探险家伯杰由于偶然的机会发现了这个洞口的话，这个洞也许不会为人所知。