Thewayofcommunicationinpeople’slifehaschangedalotofinre...
問題詳情:Thewayofcommunicationinpeople’slifehaschangedalotofinrecentyears.Inthepast,peoplekeepintouchwitheachothermainlybywritinglettersorusethepublictelephone.Butnowalmosteveryonehaveamobilephone.Peo...