- 问题详情:Thebiggestchallengefacedbytravelersespeciallythosewholiketohaveabackpackingtripishowtoensureasteadysupplyofcleanclothes.Now,thankstoagreatinventioncalledScrubbaWashPack,thatworrymaybeathingofthepast.TheportablewashingmachinewasinventedbyAshNe...
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