hard palate
柯林斯词典
1. N the anterior bony portion of the roof of the mouth, extending backwards to the soft palate 硬腭
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hard palate
剑桥词典
- the hard part that forms the top of the mouth , behind the front teeth
硬颚（位于嘴的顶端，前排牙齿后面的坚硬部分）
比较
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