Chinaisalandofbicycles.Atleastitwasbackin1992whenItrave...
問題詳情：Chinaisalandofbicycles.Atleastitwasbackin1992whenItraveledthecountry.Backtheneveryoneseemedtoberidingabicycle.Millionsofthem,allblack.Carswererare(罕見的).YetsincemyarrivalinBeijinglastyear,I...