名词
中文翻译：Unknown
同义词：
['hardness', 'durability', 'resilience例句：1. The steel is very hard and durable.（这种钢非常坚硬且耐用。）']
例句：
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1. The steel is very hard and durable.
这种钢非常坚硬且耐用。
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2.The material has good hardness and can withstand heavy loads.
这种材料硬度好，能承受重载。
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3.The new design has improved durability and reduced weight.
新设计提高了耐用性和减轻了重量。