Khn
[醫][=Knoop hardness number]努普（氏）硬度值
??? 情景例句
Very wise.
非常明智。
I used to start working at 9:00 o'clock every day.
我過去常在9:00點鐘開始每天工作。
Before she grew old, Aunt Harriet used to entertain lavishly.
哈麗特姑媽年輕時，喜歡大擺宴席，招待賓客。