hardness

'hɑ:dnis
托福

英文释义

n. the property of being rigid and resistant to pressure; not easily scratched; measured on Mohs scale
n. a quality of water that contains dissolved mineral salts that prevent soap from lathering
n. the quality of being difficult to do

中文翻译

n. 坚硬, 困难, 严厉, 勇气
[化] 硬度

12,304
BNC 频率
17,667
使用频率

记忆技巧

hardness 由词根 hard（硬的）和名词后缀 -ness（表示性质或状态）构成，表示“硬的性质或状态”。

例句

1. The hardness of the diamond makes it very valuable.
钻石的硬度使它非常有价值。
2. You can test the hardness of the material using a special tool.
你可以使用特殊工具来测试材料的硬度。
3. The hardness of the water can affect the taste of the tea.
水的硬度会影响茶的味道。

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