Smaragd
n. [矿]祖母绿, 纯绿柱石
🗣️ 情景例句
Please accept my apology for not neeting you for lunch Tuesday.
我很抱歉，星期二没有与你一起共进午餐。
What is happening over there?
那里发生什么事情？
It must have been about two in the morning when I returned home.
我回到家时，肯定已是凌晨两点左右了。