名词
中文翻译：咬合器
同义词：
['crusher', 'grinder', 'chewer']
例句：
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1. The jaw-breaker is designed to help people with clenched jaws.
这个咬合器是为了帮助那些咬紧牙关的人。
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2. The dentist used a jaw-breaker to break the tooth.
牙医用一个咬合器来打破这颗牙齿。
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3. The child was given a jaw-breaker to help him open his mouth.
孩子被给了一个咬合器，以帮助他张开嘴巴。