Wecannotlivealifewit的精選

問題詳情：Wecannotlivealifewithouttravelling.Thefastestwayoftravellingisbyair.Withaplaneonecantravelinonedaytoplaceswhichittakesamonthormoretogettoahundredyearsago.Travellingbytrainisslowerthanbyplane,b...