Rayleigh number
[化] 瑞利数
🧩 词语组成解析
n. 瑞利（姓氏）；雷利（极光和夜天光的发光强度的单位）
🗣️ 情景例句
I don't care. I'm not fussed either way.
我不介意。我亦没有自寻烦恼。
When guns speak it is too late to argue.
待到炮声响，辩论已莫及。
He has worked there since it opened in 1989.
从1989年这家工厂开办起，他就在这儿工作。