名词
中文翻译：僵硬
同义词：
['rigidity', 'stiffness', 'rigidity例句：1. The material is very stiffness', 'making it difficult to bend.（这种材料非常坚硬，难以弯曲。）']
例句：
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1. The material is very stiffness, making it difficult to bend.
这种材料非常坚硬，难以弯曲。
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2. The child's stiffness makes him uncommunicative.
孩子的僵硬让他不善言辞。
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3.The muscles in the neck are particularly stiffness, which can cause pain.
颈部的肌肉特别僵硬，这可能会导致疼痛。