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老年

出自维基百科,自由个百科全书

老年(英语:old age),一般指生物个生命周期一个阶段,即中年到死亡个一段辰光。弗同个文化圈对于老年人有得弗同个定义。由于生命周期是一个渐变个过程,壮年到老年个分界线往往是咾模糊个。

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