Nacrum
(=nacre)珍珠质
🗣️ 情景例句
Karaoke isn't really a performing art.
卡拉 OK 不算是真正的表演艺术。
Being the newest member of this committee is really difficult.
能成为这个集体的新成员是很难的。
I don't think so.
我不这么想。