Dipyramid
双棱锥体
🗣️ 情景例句
Who is it?
谁呀
Please give my best regards to your parents.
请代我致最高的敬意，向你的父母问好。
Perhaps it will solve my problem, but I just haven't had time to read it!
也许这本书能解决我的问题，但我一直还没时间去看这本书！