听力原文： Hello, ladies and gentlemen, this is your captain speaking. You are on board Flight 1125 heading for Los Angeles and scheduled to arrive at 20:46 Western Daylight Savings Time. We are currently 15,000 feet above sea level and traveling at 900/kph, and our expected travel time is estimated at 4 hours. As you can see from looking out the windows, the weather is beautiful, and we are expecting to have a turbulence-free ride. However, we may experience some strong winds coming from the north just before touchdown in LA. So passengers are recommended to stay seated as we reach the west coast area. Presently, your attendants should be passing out some drinks and snacks prior to dinner. All of us from Flywest Airlines thank you for flying with us. How long is the flight?