The Tokyo 2020 Paralympic Venue Ariake Arena is illuminated with the Paralympic symbol colours to mark one-year-to-go until the start of the postponed Tokyo 2020 Paralympic Games in Tokyo, Japan, Aug. 24, 2020. (Xinhua/Du Xiaoyi)

Tokyo Skytree is illuminated with the Paralympic symbol colours to mark one-year-to-go until the start of the postponed Tokyo 2020 Paralympic Games in Tokyo, Japan, Aug. 24, 2020. (Xinhua/Du Xiaoyi)

The Tokyo 2020 Paralympic Venue Tokyo Aquatics Centre is illuminated with the Paralympic symbol colours to mark one-year-to-go until the start of the postponed Tokyo 2020 Paralympic Games in Tokyo, Japan, Aug. 24, 2020. (Xinhua/Du Xiaoyi)

The Tokyo 2020 Paralympic Venue Ariake Arena is illuminated with the Paralympic symbol colours to mark one-year-to-go until the start of the postponed Tokyo 2020 Paralympic Games in Tokyo, Japan, Aug. 24, 2020. (Xinhua/Du Xiaoyi)

Photo taken on Aug. 24, 2020 shows a countdown clock displaying 365 days to go until the start of the postponed Tokyo 2020 Paralympic Games in Tokyo, Japan. (Xinhua/Du Xiaoyi)

The Tokyo 2020 Paralympic Venue Tokyo Aquatics Centre is illuminated with the Paralympic symbol colours to mark one-year-to-go until the start of the postponed Tokyo 2020 Paralympic Games in Tokyo, Japan, Aug. 24, 2020. (Xinhua/Du Xiaoyi)

The Tokyo 2020 Paralympic Venue Tokyo Aquatics Centre is illuminated with the Paralympic symbol colours to mark one-year-to-go until the start of the postponed Tokyo 2020 Paralympic Games in Tokyo, Japan, Aug. 24, 2020. (Xinhua/Du Xiaoyi)

Tokyo Skytree is illuminated with the Paralympic symbol colours to mark one-year-to-go until the start of the postponed Tokyo 2020 Paralympic Games in Tokyo, Japan, Aug. 24, 2020. (Xinhua/Du Xiaoyi)

Photo taken on Aug. 24, 2020 shows a countdown clock displaying 365 days to go until the start of the postponed Tokyo 2020 Paralympic Games in Tokyo, Japan. (Xinhua/Du Xiaoyi)