Cellulae ethmoidales

例句：

1. 1. He had a severe case of sinusitis that required immediate medical attention.
   他得了严重的鼻窦炎，需要立即就医。
2. 2. The doctor diagnosed her with sinusitis and prescribed antibiotics for treatment.
   医生诊断她患有鼻窦炎，并开了抗生素来治疗。
3. 3.Sinusitis can be caused by various factors such as allergies or an infection in the nose.
   鼻窦炎可能由各种因素引起，如过敏或鼻子感染。