Dioptase
n. [矿]绿铜矿
🗣️ 情景例句
I've been having a hard time keeping my eyes open
我一直挣扎着要让双眼睁开
I haven't the slightest idea.
我一点儿都不知道。
A man without an education, many of us believe,
我们许多人都相信，一个没有受过教育的人，