Untiltheinventionofthesteamengine,humanstravelledtheear...
问题详情：Untiltheinventionofthesteamengine,humanstravelledtheearthonfoot．Theslowtravelmeantexplorersfrequentlyreturnedwithstoriesaboutdistantlands:someofthemwildtales,somehonestdescriptions. Barb...