形容词
中文翻译:坚硬的
同义词:
['stiff', 'hard', 'tough', 'solid']
例句:
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1. The car is very hard to start in the cold weather.
这辆车在寒冷的天气里很难启动。
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2. The material is hard to work with and requires special tools.
这种材料难以加工,需要特殊的工具。
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3. The rocks are hard to move, so we need to use a shovel.
这些石头很难移动,所以我们需要用铲子。