- 問題詳情:Eco-friendlyCarRacerCanyouimageacarracerissoeco-friendlythatitstyresaremadefrompotatoes,itsbodyiscreatedfromhemp(大麻)andrapeseedoilanditrunsonfuelmadefromwheatandsugarbeet?Theone-seaterracingcarcalledEcoOneisbuiltbyexpertsfromWarwickUniversity...
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