Milles
(mille 的复数) n. 千（主要用于per mille 中）
🗣️ 情景例句
Nice to meet you, Mrs. Cooper.
很高兴见到你， Cooper太太。
Well, it's too bad that you have to go.
哦，真遗憾，你一定要走。
It is the natural frequency of emission of the hydrogen atoms in space and was discovered by us in 1951;
这个频率是空间氢原子释放的自然频率，是在1951年被人类发现的。