名詞 hardness:

1. the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale
2. devoid of passion or feeling; hardheartedness
   同義詞：unfeelingness, callousness, callosity, insensibility
3. the quality of being difficult to do
   同義詞：ruggedness
4. excessive sternness
   同義詞：severity, severeness, harshness, rigor, rigour, rigorousness, rigourousness, inclemency, stiffness

1. A stone once believed to be impenetrable in its hardness.
   硬石，金剛石一種曾被認為在硬度上不可穿透的石頭
2. Despite the hardness of his bed, he is soon sleeping soundly.
   雖然床很硬，他還是很快地睡熟了。
3. I can't open the door with hardness of stone.
   我不能打開那扇石門。
4. Their hardness was understood by the teacher.
   他們的艱難得到老師的理解。

hard.ness

n.Abbr. h.,H.（名詞）縮寫 h.,H.
The quality or condition of being hard.
變硬的性質(zhì)或條件
Mineralogy The relative resistance of a mineral to scratching, as measured by the Mohs scale.
【礦物學】 相對硬度：用莫氏硬度標測量的某種礦物質(zhì)的相對硬度
The relative resistance of a metal or other material to denting, scratching, or bending.
硬度：某種金屬或其他物質(zhì)相對抗壓、抗劃或抗折的能力