There is one cavea on either side of the nose, which is called "maxillary sinus".
在鼻
侧各有1个空,称为"上颌窦"。
梯形座位There is one cavea on either side of the nose, which is called "maxillary sinus".
在鼻侧各有1个空,称为"上颌窦"。
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