Oncetherewassomethingwrongwithamachineinafactory.The...
问题详情: Oncetherewassomethingwrongwithamachineinafactory.TheworkerscoulddonothingbutturntoaGermanengineerforhelp,whodrewalineonitandsaid,"Takeoffthepartwherethelineisandchangeitoranewone."With...