Four-momentum
四维动量
🧩 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
Good afternoon, Mrs. Martin. I've come to see Mr. Martin.
您好，马丁夫人。我来看看马丁先生。
A straight foot is not afraid of a crooked shoe.
身正不怕影子斜。
'A fire extinguisher, my dear,' answered the Ambassador drily.
“灭火器弄的，亲爱的，”大使冷冷地回答，