Passengers arrive at Macao's border checkpoint at Hengqin Port on Aug. 18, 2020. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Cheong Kam Ka)

 

A passenger (2nd R) shows her health QR code to health quarantine staff at Hengqin Port on Aug. 18, 2020. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Deng Hua)

 

Aerial photo taken on Aug. 18, 2020 shows the Hengqin Port. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Cheong Kam Ka)

 

A police officer from Macao Special Administrative Region introduces the joint automated inspection channels to reporters at Hengqin Port on Aug. 18, 2020. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Cheong Kam Ka)

 

Passengers pass through a checkpoint at the new passenger inspection area of Hengqin Port on Aug. 18, 2020. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Deng Hua)

 

Passengers pass through the automated inspection channels at the new passenger inspection area of Hengqin Port on Aug. 18, 2020. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Deng Hua)

 

Aerial photo taken on Aug. 18, 2020 shows the Hengqin Port. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Deng Hua)

 

Passengers pass through the automated inspection channels at Hengqin Port on Aug. 18, 2020. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Cheong Kam Ka)

 

Passengers pose for photos at Macao's border checkpoint at Hengqin Port on Aug. 18, 2020. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Cheong Kam Ka)

 

Tourists pose for photos with Macao tourism mascot after clearance procedures at Hengqin Port on Aug. 18, 2020. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Cheong Kam Ka)

 

Aerial photo taken on Aug. 18, 2020 shows the Hengqin Port. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Cheong Kam Ka)

 

Photo taken on Aug. 18, 2020 shows the opening ceremony of new passenger inspection area of Hengqin Port. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Deng Hua)

 

A Macao citizen passes through the automated inspection channels to enter Zhuhai at the new passenger inspection area of Hengqin Port on Aug. 18, 2020. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Deng Hua)

 

A police officer from Zhuhai checks the automated inspection channels at Hengqin Port on Aug. 18, 2020. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Deng Hua)

 

A passenger from Macao walks in the new passenger inspection area of Hengqin Port on Aug. 18, 2020. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Deng Hua)

 

Aerial photo taken on Aug. 18, 2020 shows the Hengqin Port. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Deng Hua)

 

A passenger (R) passes through the automated inspection channels at the new passenger inspection area of Hengqin Port on Aug. 18, 2020. The new port to facilitate travel between Macao and Zhuhai, south China's Guangdong Province, was officially put into use Tuesday, a new step to boost development of the Guangdong-Hong Kong-Macao Greater Bay Area. (Xinhua/Deng Hua)