As people grow old, they will decay mentally as well as physically.

人们年老时脑力和体力都会衰退。

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When people grow old, sometimes they turn to be irritable and stubborn.

当人们变老。有时他们就会变得暴躁而又顽固。

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Nobody grows old by merely living a number of years. People grow old by deserting their ideals.

没有人只因活很多年而变老，人们因放弃理想而变老。

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"It becomes a challenge because we live in Peter Pan houses, designed for people who never grow old, " said Susan Bosak, a social scientist who is overseeing a program to boost intergenerational engagement in Tulsa, Okla.

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They will grow old, but their hits never will -- once people first fall in love with those songs, the songs will mean something powerful and evocative to them for the rest of their lives.

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