Disphenoid
复正方楔; 双半面晶形
🗣️ 情景例句
Is it too late to cancel our plans?
现在取消我们的计划是否太迟了？
Proverbs are the cream of a nation's thought.
谚语是一国的思想精华。
She got up before 7 o'clock in the morning, and quickly washed her hands and face.
00以前起床，快快地洗手洗脸。