马拉松比赛通常在清晨开始。

___Marathon races often start early in the morning.

完成一次马拉松对于许多运动员来说是一项重要的成就。

Completing a ___marathon is a significant achievement for many athletes.

休息日有助于身体在马拉松高强度训练后恢复。

Rest days help the body recover after intense ___marathon workouts.

马拉松训练通常需要几个月的准备时间。

___Marathon training usually takes several months of preparation.

马拉松是一种42.195公里的长跑比赛。

A ___marathon is a long-distance running race of 42.195 kilometers.

许多人正在参加马拉松比赛。

Many people are running in the ___marathon.