Disphenoid
复正方楔; 双半面晶形
🗣️ 情景例句
Richard and Marilyn bought it for me for my birthday.
这是Richard和Marilyn送给我的生日礼物。
True love shows itself in time of need.
急需时见真情。
OK. But I'm afraid I may be a little late.
好。不过我恐怕会稍晚一点到。