K-density
[计] k稠密性
🧩 词语组成解析
🗣️ 情景例句
Turn the key before you pump the pedal, or you'll flood the engine.
加水之前转动钥匙，要不发动机就给浇灭了。
I don't know where I am.
我不知道我身在何处。
He should have known that the police would never allow this sort of thing.
他本该知道警察绝不会允许这类事情发生。