Tourists buy shuttle bus tickets for the Hong Kong-Zhuhai-Macao Bridge through a self-service ticket machine in south China's Hong Kong, Oct. 24, 2019. Launched on Oct. 23 last year, the 55-km bridge, known as the longest bridge-and-tunnel sea crossing in the world, links China's Hong Kong Special Administrative Region (SAR), the city of Zhuhai of southern Guangdong Province and Macao SAR, making it more convenient for ordinary people to travel the three places in a single day. (Xinhua/Cheong Kam Ka)