如果你去跑马拉松，第二天你会发现你的腿会非常累，而且非常疼。

So like if you run a marathon, you know the next day your legs are really tired and they really hurt.

youdao

如果你去跑马拉松，第二天你会发现你的腿会非常累，而且非常疼。

So like if you run a marathon, you know the next day your legs are really tired and they really hurt.

youdao