Disphenoid
复正方楔; 双半面晶形
🗣️ 情景例句
Is there any particular color you would prefer?
你有什么特别喜欢的颜色吗？
He who never was sick dies the first.
小病不生，一病致命。
Yes. I don't think it's necessary to buy the bigger one.
有哇。我认为没必要买较大的机子。