Here is a story.A participant in the long-distance race got his shies filled with sand when he was crossing a beach.He had to srio to get the sand out hastily before he resumed running.

• 有这么一个故事:有一个参加长跑比赛的选手在经过一片沙滩时,鞋子里灌满了沙子,他匆匆把鞋子脱下,胡乱地把沙子倒出,便又急忙地继续往前跑。