At any given moment during the day, 10 percent of drivers on U.S. roads are gabbing away on their wireless devices, according to a 2005 estimate by the National Highway Traffic Safety Administration.

• 国家公路交通安全管理局在2005年做的推估显示，每天任一时刻，美国都有10%25的驾驶人会用无线设备聊个没完。