SANFRANCISCO—Aphoneapp（应用程序）inSanFranciscogivesinformat...
问题详情：SANFRANCISCO—Aphoneapp（应用程序）inSanFranciscogivesinformationaboutopenparkingspots.CityofficialsinSanFranciscointroducedtheapptotrytoreducetrafficjamsinthecity,butsomesayitraisessafetyconcerns...