Reynold's number
[医] 雷诺氏数(液体流速率)
🧩 词语组成解析
🗣️ 情景例句
What was it about?
刚才谈什么？
No matter what happens, don't be discouraged.
无论发生什么事，都不要气馁。
The plane was late and detectives were waiting at the airport all morning.
飞机误点了，侦探们在机场等了整整一上午。