Youcouldfilltheskywithflyingcars-orwhatCarlDietrichc...
問題詳情: Youcouldfilltheskywithflyingcars-orwhatCarlDietrichcalls“flying一drivingvehicles.”CarlDietrichsaid,"Sincetheturnofthetwentiethcentury,therehavebeenmanyhundredsofpublishedconceptsforfl...