Photo taken on Aug. 12, 2020 shows a QR code being attached to tables for people to fill out the contact form online to help prevent the spread of COVID-19 in a food court in Canberra, Australia. According to the COVID-19 Easing of Restrictions Roadmap, food courts had been allowed to reopen and provide dine-in services for customers under corresponding measures in Canberra since Aug. 10. (Photo by Liu Changchang/Xinhua)

Photo taken on Aug. 12, 2020 shows a sign in a food court area to remind customers of keeping social distance in Canberra, Australia. According to the COVID-19 Easing of Restrictions Roadmap, food courts had been allowed to reopen and provide dine-in services for customers under corresponding measures in Canberra since Aug. 10. (Photo by Liu Changchang/Xinhua)

Photo taken on Aug. 12, 2020 shows a bottle of hand sanitizer for customers to use in a food court area in Canberra, Australia. According to the COVID-19 Easing of Restrictions Roadmap, food courts had been allowed to reopen and provide dine-in services for customers under corresponding measures in Canberra since Aug. 10. (Photo by Liu Changchang/Xinhua)

A staff cleans the table in a food court in Canberra, Australia, Aug. 12, 2020. According to the COVID-19 Easing of Restrictions Roadmap, food courts had been allowed to reopen and provide dine-in services for customers under corresponding measures in Canberra since Aug. 10. (Photo by Liu Changchang/Xinhua)