Wouldyouliketospendyourvacationtravelingbyballoon（气球）？T...
问题详情：Wouldyouliketospendyourvacationtravelingbyballoon（气球）？ThefirstballoontriptookplaceinFrancein1783.Itlastedonlyeightminutes. AboutayearlaterAmericanandaFrenchmandecidedtocrossthechannel.(海峡)...