Bastnaesite
氟碳铈矿
🗣️ 情景例句
I understand, Grandpa.
我能体会你， 爷爷。
Insecticides destroy many harmful bugs.
杀虫剂能驱除许多害虫。
It is as if a single unimportant event set up a chain of reactions.
好像是一件无关紧要的小事引起了一连串的连锁反应。