Swimmer's ear is an infection of the outer ear canal.
游泳性耳炎是一种外耳道感染。
Birds are even more mysterious, because here we do not even see an outer ear.
鸟类甚至更为神秘，因为我们甚至看不到它们有一个外耳。
Conductive hearing impairment is a problem in the outer or middle ear.
传导性听力障碍是外耳道或中耳道出现问题。
With the head upright, take hold of the outer part of the ear.
保持头部完全侧向一边，抓住另外一只耳朵的耳廓。
With the head upright, take hold of the outer part of the ear.
保持头部完全侧向一边，抓住另外一只耳朵的耳廓。
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