There is one cavea on either side of the nose, which is called "maxillary sinus".
在鼻腔的两侧各有1个空腔,称
"
窦"。
There is one cavea on either side of the nose, which is called "maxillary sinus".
在鼻腔的两侧各有1个空腔,称"窦"。
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