足端可使用的曲线1：https://mp.weixin.qq.com/s?__biz=MzU1NjEwMTY0Mw==&mid=2247509540&idx=1&sn=ccdd2e3dd0e28219a0c41a4193c68f6e&chksm ...

From August 14–17, Beijing’s National Speed Skating Oval, the “Ice Ribbon,” turned into an Olympic-style arena for robots. The Games include boxing, high jump, and hotel service, among 21 events.