eustachian tube obstruction

例句：

1. 1.He was diagnosed with an eustachian tube obstruction and needed to undergo surgery.
   他被诊断出患有咽鼓管阻塞，需要接受手术。
2. 2. The child's eustachian tube was blocked, causing him to have difficulty breathing.
   孩子的咽鼓管被阻塞，导致他呼吸困难。
3. 3.After the operation, the doctor advised the patient to follow up with a hearing test to check for any residual obstruction in the eustachian tube.
   手术后，医生建议患者进行听力测试，以检查咽鼓管是否有残留阻塞。