形容词
中文翻译:坚硬的
同义词:
['tough', 'solid', 'toughness']
例句:
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1. The rock is very hard and cannot be carved easily.
这块石头非常硬,不容易雕刻。
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2. The carpenter used a hard wood to make the table.
木匠用硬木做桌子。
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3. The ice was so hard that it cracked under my fingernails.
冰太硬了,在我指甲下都裂开了。