Thebicycleisthecommonsightinourdailylife,asagreatmanyCh...
問題詳情：Thebicycleisthecommonsightinourdailylife,asagreatmanyChineseuseoneeveryday.Butyoumaynotknowitsroleinstrengtheninginternationalrelations,asitdidinthecaseofUSPresidentGeorgeW.Bush'svisittoChina...