Chalcedony
n. 玉髓\\n[化] 玉髓
🗣️ 情景例句
Do I know you?
我认识你吗？
I'm afraid I don't know. Let me ask the supervisor in this section.
恐怕我不知道，让我来询问一下该组的负责人。
We're going to leave at about seven thirty next Monday morning.
我们打算下星期一早上7：30 左右出发。