单词flat racing
n.: 无障碍平地赛马网络: 平地赛马项目；平道赛马；障碍赛跑
无障碍平地赛马:
the sport of horse racing over flat ground with no jumps
All my funny stories about the flat racing fell completely flat.
我讲的关于平地赛马的有趣的故事都没有人觉得可笑。