Barysilite
硅铅矿
🗣️ 情景例句
Leave well enough alone.
得过且过，见好就收。
My brother is a member of the faculty.He teaches economics.
我的兄弟是全体教员中的一员，他是教经济学的。
When are you going to have a holiday, Sam?
萨姆，你准备什么时候去度假？