Langbeinite
n. [化] 无水钾镁矾
🗣️ 情景例句
I have some questions to ask.
我有一些问题要问。
Mr. Jones is the author of the controversial book.
琼斯先生写出了一本有争议的书。
Competition between ourselves, person against person, community against community,
然而人类之间的竞争，人与人，团体与团体，