名詞 marathoner:

1. someone who participates in long-distance races (especially in marathons)
   同義詞：marathon runner, road runner, long-distance runner

mar.a.thon.er

n.（名詞）
One that participates in a marathon, especially a marathon runner.
馬拉松賽跑者：參加馬拉松競賽者，尤指馬拉松賽跑者

【引伸】
mar.athon.ing
n.（名詞）