Swimmer's ear is an infection of the outer ear canal.
游泳性耳炎是一种外耳道感染。
Our ears are made up of three parts: the outer ear, the middle ear, and the inner ear.
我们的耳朵由三部分组成：外耳、中耳、内耳。
The outer ear is the part you can see.
外耳是你能看到的部分。
The outer ear (the pinna) receives a single sound wave composed of different sounds.
外耳(耳廓)收集含不同声音的单声波。
The outer ear (the pinna) receives a single sound wave composed of different sounds.
外耳(耳廓)收集含不同声音的单声波。
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