单双大小的方法和技巧简介：Dear passengers: You have arrived at the terminal of this train, Chengdu Railway Station. Passengers, please prepare your luggage and prepare to get off. The train's voice loudspeaker makes announcements.
Dear passengers: You have arrived at the terminal of this train, Chengdu Railway Station. Passengers, please prepare your luggage and prepare to get off. The train's voice loudspeaker makes announcements.
