Disphenoid
复正方楔; 双半面晶形
🗣️ 情景例句
OK, let's begin. To our friendship!
可以，开始吧，为了友谊！
Praise no man till he is dead.
盖棺论定。
Well, there are several things we could do.
唔，有几件事是我们可以做的。