To reach the summits, the team had to travel on foot,要登上山顶，摄制组必须徒步攀登

on foot步行

The old couple enjoyed travelling on foot.

这对老人喜欢徒步旅行。

It's easier to get there on foot than by car.

到那儿去，步行比坐车容易。

相关短语:

on the right foot处于有利地位

get off on the right foot一开头就很顺利

It would take more than two weeks,climbing over 3,000 metres from the valleys below.从下面的山谷出发需要2周时间，历经超过3000米的攀爬距离

more than超过；多于

True friendship is worth more than money.

真正的友谊比金钱更有价值。

I am more than twice as old as he.

我的年龄是他的两倍还不止。

climb over翻越

Give me a leg up and I'll climb over the wall.

帮我一把，我就会爬过墙去。