Among the public transport staff, there are such a group of young workers from all over the world: they come out from the sunset and compete with the night every day. Behind the unknown, they guard the safety of the trolley bus network conscientiously and interpret the mission and responsibility of the trolley bus youth with their own practical actions. The unique working scene of the young workers of the trolley bus emergency repair class reflects the role of the young workers of the trolley bus as the night watchman in the ordinary posts. @Guangzhou Bus Group Co., Ltd