其他原因包括过敏，耳部感染和一些你的耳朵内的对象。

Other causes include allergies, ear infections, and some object inside your ear.

youdao

其他原因包括过敏，耳部感染和一些你的耳朵内的对象。

Other causes include allergies, ear infections, and some object inside your ear.

youdao