他一天能走50公里，脚力真好。

He's really got strong legs to be able to walk 50 kilometres a day.

攀登山顶的脚力，生于欲穷千里目的壮心和不到长城非好汉的意志。

Climb the top of the mountain foot stronger, born in purpose to cheer the will of the hero and not a true man unless he comes to the Great Wall.