A marathoner is someone who runs a marathon: the very long road race of 42.195 kilometres.

A marathoner is someone who runs a marathonmarathoner指的是跑馬拉松的人: the very long road race of 42.195 kilometres也就是那場42.195公里的超長路跑。

The word is simply marathon plus -er, the usual English ending for a person who does a thing.

The word is simply marathon plus -er這個字就是marathon加上-er, the usual English ending for a person who does a thing也就是英文裡表示「做某件事的人」常用的字尾。

It is a little more ‘sports page’ than everyday talk; many people just say marathon runner.

It is a little more 'sports page' than everyday talk它比日常對話更「體育版」一點, many people just say marathon runner很多人乾脆就說marathon runner。

You can use it for anyone who takes on the race, not only the winner — a first-timer on race day is already a marathoner for that day.

You can use it for anyone who takes on the race你可以用它指任何參加這場比賽的人, not only the winner不只是冠軍——a first-timer on race day is already a marathoner for that day一個第一次參賽的人，在比賽當天就已經是個marathoner了。

It does not mean a person from Marathon in Greece. That place gave the race its name, but a marathoner is defined by the running.

It does not mean a person from Marathon in Greece它不是指希臘馬拉松鎮的人。That place gave the race its name那個地方給了這場比賽名字, but a marathoner is defined by the running但marathoner是由跑步這件事來定義的。

People also stretch marathon to mean any long, draining effort (a marathon meeting); they do not usually stretch marathoner in the same way.

People also stretch marathon人們也會把marathon延伸使用, to mean any long, draining effort (a marathon meeting)用來指任何冗長又累人的事（例如a marathon meeting，馬拉松式的會議）; they do not usually stretch marathoner in the same way但他們通常不會用同樣的方式延伸marathoner。