Elementary geometry
初等几何（学）
🧩 词语组成解析
🗣️ 情景例句
There's coffee ready.
咖啡准备好了。
I ought to be on time.
我应该准时到。
No. He just asked if you could ring him back. Here's the number.
没有，他只问你能不能给他回一个电话。这是他的电话号码。