A top Air France official, Pierre Henri Gourgeon, said Flight 447 bound for Paris disappeared from radar early Monday -- nearly four hours after takeoff from Rio de Janeiro.是什么意思_A top Air France official, Pierre Henri Gourgeon, said Flight 447 bound for Paris disappeared from radar early Monday -- nearly four hours after takeoff from Rio de Janeiro.在线翻译_英语_读音_用法_例句