Four-vectors
(four-vector 的复数) 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;
n. 带菌者；向量（vector的复数）
🗣️ 情景例句
If there's anything you need while you're in town, just let me know.
你在镇上有什么需要，就告诉我吧。
Don't repeat everything I say!
不要学我说话！
Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.
如果有相配的电压，可以煮少量水的便携式热水装置是有用的。