middle-long-distance running

• 中长跑

middle-long-distance running的用法和样例：

例句

1. He is a very good middle and long distance runner.
   他是非常优秀的中长跑运动员。
2. The target of this research is teen-agers men middle-long distance races sparetime training of Gansu Province.
   本课题研究以甘肃省青少年男子中长跑业余训练为研究对象。