If the Dou Kou constriction has hindered the Dou Qiang ventilation and the drainage, should expand it.

如果窦口的缩窄已阻碍窦腔的通气和引流，则应扩大之。

youdao

If the Dou Kou constriction has hindered the Dou Qiang ventilation and the drainage, should expand it.

如果窦口的缩窄已阻碍窦腔的通气和引流，则应扩大之。

youdao