Let's walk along the lake, cross the bridge and climb up the hill.

让我们沿着湖走，过桥并爬上山。

We climb up the hill along the mountain path.

我们沿着山路爬上了山。

The long climb up the hill made her heart throb.

长时间的爬山使她的心脏悸动.

It is hard for me to climb up the hill alone.

独自一人爬上那座山对我来说太难了。

E. g. It is hard for me to climb up the hill alone.

独自一人爬上那座山对我来说太难了。

So instead I'd study the buttress up close and then climb up the hill to see its crown rising above the canopy.

所以我就近距离研究树的支撑部分，然后爬上山去观察顶部的树冠。