As a young man, he began walking over tens of thousands of miles during his lifetime, through the south to Florida, the west to California and north to Alaska.
在他年轻的时候，他开始用一生的时间走遍数万英里，南至佛罗里达，西至加利福尼亚，北至阿拉斯加。
After five years he was home. He was never again the healthy young man who climbed mountains and carried heavy bags of fossils for miles.
五年后他回到家，不再是那个能翻山越岭、并扛着沉重的化石一口气行走数英里的健康小伙儿了。
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