91-year-old sets record hiking Appalachian Trail | CNN

Dale Sanders shares his secrets on longevity and how he hiked the grueling Appalachian Trail at 91.

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戴尔·桑德斯分享了他的长寿秘诀，以及他如何在 91 岁高龄徒步穿越艰苦的阿巴拉契亚山径。

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