Bivector
二重矢量, 二重向量, 平面量
🗣️ 情景例句
Do you know what I'm talking about?
知道我讲的是什么吗？
He is also very fond of playing tennis and manages to find time for a game twice a week.
他非常喜欢打网球，每周总要抽时间打两次。
Do you remember when the three of us went on a picnic?
我们三个人一起搞过野餐，你还记得吗？