Dioctahedral
二八面体的(晶体结构)
🗣️ 情景例句
It's been a pleasure to talk to you.
和你谈话是件很愉快的事。
The pen is the tougue of the mind.
笔是心之舌。
however well we look after ourselves,
不管我们怎样精心照料我们自己，