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Findingenoughmeatwasaproblemforprimitive(原始的)manand,kee...
问题详情:Findingenoughmeatwasaproblemforprimitive(原始的)manand,keepingitfortimeswhenitwasscarce(缺乏的)wasjustashard.Threewayswerefoundtokeepmeatfromspoiling(腐烂.):salting(盐),drying,andfreezing.People...
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