Khn
[医][=Knoop hardness number]努普（氏）硬度值
🗣️ 情景例句
That's it. There.
很好。啊。
To worry about tomorrow is to be unhappy today.
担心明天，今天就不愉快了。
From the moment of his birth, the customs into which he is born shape his experience and behaviour.
从他呱呱坠地的时刻起，他所生于其中的风俗就开始塑造他的经历和行为规范。