- 问题详情:Asmachinesgo,thecarisnotterriblynoisy,norterriblypolluting,norterriblydangerous;andonallthosedimensionsithasbecomebetterasthecenturyhasgrownolder.ThemainProblemisitsprevalence,andthesocialcoststhatensuefromtheusebyeveryoneofsomethingThatwould...
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