Polyhedra
polyhedron 的复数
🗣️ 情景例句
What do people usually do on that day?
在这一天，人们通常干什么？
I'm not really sure about that. Mr. Jiang should know the answer to that.
关于那事我不敢确定，蒋先生应该知道答案。
He had known that it was not safe to travel alone in the forest near the coast.
也听说过独自一人在海边的森林里走是不安全的。