知识贝壳
知识贝壳
所属栏目：建筑施工英语
WhenOrvillewright(1871—1948)andhisbrotherWilbur(1867—1912)mademansfirstpoweredflightonDecember17,1903,atkittyHawk,NorthCarolina,theyrevolutionizedtransportation.Intheorythenewaircraftmadepossiblethemovementofmenandgoodsfromanypointonearthtoanyotherwithout ......（本文共 5667 字 ） [阅读本文] >>