Khn
[医][=Knoop hardness number]努普（氏）硬度值
🗣️ 情景例句
The main course: steak and potatoes.
主菜 牛排和马铃薯。
The wise hand doth not all that the foolish mouth speaks.
聪明人的手不做愚笨人所说的事。
How would you like to proceed with the negotiations?
你认为该怎样来进行这次谈判呢？