久久精品30_一本色道久久精品_激情综合视频_欧美日韩一区二区高清_好看的av在线不卡观看_国产自产精品_91久久黄色_午夜亚洲福利_欧美黄在线观看_国内自拍一区

As of 1 January 1999, trampoline became a discipline of gymnastics at the Olympic Games. Trampoline competitions for both men and women were added to the Olympic program and made their debut during the Sydney 2000 Olympic Games.

(BOCOG)