Oncetherewassomethingwrongwithamachineinafactory.The...
問題詳情： Oncetherewassomethingwrongwithamachineinafactory.TheworkerscoulddonothingbutturntoaGermanengineerforhelp,whodrewalineonitandsaid,"Takeoffthepartwherethelineisandchangeitoranewone."With...