In those days, my brother and I entered 4 H Club gymkhanas with our horses every year.那时候, 我和哥哥每年都参加(农业部为青少年设立的)4H俱乐部所组织的马术竞技比赛....

n.竞技场( gymkhana的名词复数 )，比赛，汽车障碍赛，赛马会...

gymkhanas的音标：...