The literature to date on noise in school rooms appears to focus on the effects on schoolchildren in general, their teachers and the hearing impaired.

到目前为止，有关教室噪音的文献似乎都集中在它对一般的学生、他们的教师和听力受损者的影响上。

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Solutions to hearing impairment focus on prevention, early detection and management, and rehabilitation.

针对听力障碍的解决办法侧重于预防、早期发现、管理和康复。

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Your eyes and ears might be seeing and hearing numerous sights and sounds, but you can only focus on a few at any one time.

你的眼睛和耳朵会看到和听到无数的景象和声音，但是你只能专注少数，在任何一个时间。

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The added bulk of an iPhone or iPod touch could be a deterrent for someone whose focus is on hearing music, especially while jogging or working out at the gym.

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The July 30 hearing will focus on Reno's failure thus far to seek an independent counsel.

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The package is expected to be the focus of a status hearing set for August 9.

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