胆汁什么颜色

An athlete demonstrated his remarkable skill in bike trial, a sport requiring participants to balance and ride over all kinds of barriers. With exceptional mastery of his bike, this athlete jumped successively onto a narrow fence and high wall. There, he constantly lifted one wheel and twirled while balancing solely on the remaining wheel, leaving passersby gasping in awe.

(Produced by Liang Xiaojian and intern Zhang Jiaqi)