Four-vector
四元矢量; 四矢量
🧩 词语组成解析
four
[fɔr]
num. 四;四个;第四;
n. 四的;四个一组之物;
🗣️ 情景例句
I've got to go. Tomorrow is Monday,
我得走了。明天是星期一。
He who makes no mistakes, makes nothing.
不犯错，将一事无成。
The dentist is very busy at the moment.
牙科医生这会儿很忙。