WelcometoWonderfulMuseum.Thismonthwearehavingaspeci...
問題詳情： WelcometoWonderfulMuseum.Thismonthwearehavingaspecialdisplayaboutoldmachinesfromdifferentcountries.Youcanfindthewaysmachineswereusedtohelppeopleonehundredyearsago.HowdidtheGermansmaket...