The Tokyo 2020 Olympic medals are seen during the "One Year to Go" ceremony celebrating one year out from the start of the Tokyo 2020 Olympics Games in Tokyo, Japan, July 24, 2019. (Xinhua/Du Xiaoyi)

The Tokyo 2020 Olympic medals are seen during the "One Year to Go" ceremony celebrating one year out from the start of the Tokyo 2020 Olympics Games in Tokyo, Japan, July 24, 2019. (Xinhua/Du Xiaoyi)

The Tokyo 2020 Olympic medals are seen during the "One Year to Go" ceremony celebrating one year out from the start of the Tokyo 2020 Olympics Games in Tokyo, Japan, July 24, 2019. (Xinhua/Du Xiaoyi)

The Tokyo 2020 Olympic medals are seen during the "One Year to Go" ceremony celebrating one year out from the start of the Tokyo 2020 Olympics Games in Tokyo, Japan, July 24, 2019. (Xinhua/Du Xiaoyi)

The Tokyo 2020 Olympic medals are seen during the "One Year to Go" ceremony celebrating one year out from the start of the Tokyo 2020 Olympics Games in Tokyo, Japan, July 24, 2019. (Xinhua/Du Xiaoyi)