Vittingite
多水硅锰矿
🗣️ 情景例句
Good morning, everyone!
各位早安！
My brother gets up later than I do.
与我做比，我的兄弟晚起床。
It has four Rolls-Royce Merlin engines, but the group will need to have only three of them rebuilt.
该飞机装装配有4台罗尔斯-罗伊斯的默林发动机，但是他们只需要修复其中的3台。