sinus

例句：

1. 1. 鼻腔；2.鼻窦；3.
   医学
2. 1.He had a sinus infection and was advised to see a doctor.
   他得了鼻窦炎，被建议去看医生。
3. 2. The patient's sinus condition worsened over the next few days.
   病人的鼻窦状况在接下来的几天里恶化了。
4. 3. The doctor performed a sinus surgery on him to relieve his symptoms.
   医生为他进行了鼻窦手术以缓解他的病症。