- 问题详情:Thepostofficehasplentyofworktodo.Ithandles(处理)thousandsofletterseveryday.Let’sfollowaletterallthewayacrossAmerica.JulielivesinNewYork.ShewrotealettertoDave.DavelivesinOregon.Julieputtheletterinthemailbox(邮箱)onMondaynight.OnTuesdaymorning...
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