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A study from Northwestern University shows that playing a musical instrument can improve a person's hearing ability.

西北大学的一项研究表明，演奏乐器可以提升一个人的听力能力。

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Deafness refers to the complete loss of hearing ability in one or two ears.

耳聋是指一只或两只耳朵的听力完全丧失。

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It may be compounded by physical decline such as loss of driving ability, decreased hearing or vision.

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More direct evidence from studies of experiments with animals and humans, however, suggests that we may have to alter the very concept of what we mean by hearing loss, and that current tests - particularly pure-tone audiometry which measures our ability to perform "pin-drop" hearing - may not be sufficient to pick up the early signs of a decline in hearing function.

BBC: Viewpoint: Does deafness contribute to dementia?

Unlike after the 2007 election, which degenerated into tribe-on-tribe violence that damaged Kenya's reputation as a stable country, this time Odinga said he had faith in the judiciary's ability to give him a fair hearing.

NPR: Kenyan Supreme Court Upholds Election Result