Langbeinite
n. [化] 无水钾镁矾
🗣️ 情景例句
The teacher flunked him in geography.
老师给他的地理打不及格。
Is this your pen? I found it under the desk.
这是你的笔吗？我在桌下捡的。
After chipping through a wall which was eighteen inches thick, they found that a man had been trapped in the chimney.
他们凿透了18英寸厚的墙壁，发现有个人卡在烟囱里。