sterile cyst

例句：

1. 1. The doctor found asterile cyst in the patient's ear.
   医生在病人的耳朵里发现了一个无性孢子囊。
2. 2. Thediscovery of this sterile cysthas led to further research.
   这种无性孢子囊的发现促使了进一步的研究。
3. 3.The patient was treated for the infection causedby the sterile cyst.
   患者因无性孢子囊引起的感染接受了治疗。