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柯大夫:我婆婆年纪大了,耳朵有些背,我打算送她一副助听器。但她怕花钱,不愿意要两只,只想配一只。请问助听器只佩戴一侧行吗?
Ko: My mother-in-law is old, my ears are back, and I’m going to send her a hearing aid. But she was afraid to spend money, do not want to two, just want to match one. Will the hearing aid wear only one side of it?