WelcometoWonderfulMuseum.Thismonthwearehavingaspeci...
问题详情： WelcometoWonderfulMuseum.Thismonthwearehavingaspecialdisplayaboutoldmachinesfromdifferentcountries.Youcanfindthewaysmachineswereusedtohelppeopleonehundredyearsago.HowdidtheGermansmaket...