Rayleigh's equation
[化] 瑞利公式
🧩 词语组成解析
🗣️ 情景例句
I just have my driver's license with me. Is that enough.
我身上只带了驾驶执照，这样够了吗？
How do you spell it?
怎么拼？
Walking up and down the stairs would beat any exercise machine.
上下楼梯可比什么健身器都要好。