Vehicles pass through the toll gate of the Hong Kong-Zhuhai-Macao Bridge in Zhuhai, south China's Guangdong Province, Jan. 13, 2019. The Hong Kong-Zhuhai-Macao bridge, the world's longest cross-sea bridge, opened to public traffic on Oct. 24, 2018. (Xinhua/Ma Ning)

A shuttle bus heading to Macao runs on the Hong Kong-Zhuhai-Macao Bridge, Jan. 13, 2019. The Hong Kong-Zhuhai-Macao bridge, the world's longest cross-sea bridge, opened to public traffic on Oct. 24, 2018. (Xinhua/Ma Ning)

A shuttle bus heading to Macao passes through the toll gate of the Hong Kong-Zhuhai-Macao Bridge in Zhuhai, south China's Guangdong Province, Jan. 13, 2019. The Hong Kong-Zhuhai-Macao bridge, the world's longest cross-sea bridge, opened to public traffic on Oct. 24, 2018. (Xinhua/Ma Ning)

A Hong Kong-registered truck goes through the Zhuhai Port of the Hong Kong-Zhuhai-Macao Bridge in Zhuhai, south China's Guangdong Province, Jan. 13, 2019. The Hong Kong-Zhuhai-Macao bridge, the world's longest cross-sea bridge, opened to public traffic on Oct. 24, 2018. (Xinhua/Ma Ning)

Vehicles run on the Hong Kong-Zhuhai-Macao Bridge, Jan. 13, 2019. The Hong Kong-Zhuhai-Macao bridge, the world's longest cross-sea bridge, opened to public traffic on Oct. 24, 2018. (Xinhua/Ma Ning)