Tuffstone
砂屑凝灰岩
🗣️ 情景例句
Friends, teachers....
朋友 老师……
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。
Well, I think at the beginning we'd rather have some fairly quiet and peaceful music.
好，我想，开始时，我们宁可听些柔和舒缓的音乐。