runner [ˈrʌnə(r)]

以下由轻松背单词网站提供

n.奔跑者，赛跑者，操作者，滑槽

someone who runs , especially in competitions

I was slowly closing on the runner ahead of me. 我慢慢追上了跑在我前面的人。
A runner needs plenty of wind. 跑步者需要呼吸大量的空气。