...a two-hour climb from the valley floor.是什么意思？

...a two-hour climb from the valley floor.

从谷底向上攀登两个小时

climb

v. 攀登，爬，登山，上升；n. 攀登，山，岩，增值，晋升；

例句
It was a tough course over a gradual ascent before the big climb of Bluebell Hill.
在爬崎岖的蓝钟山之前有一段很难走的上行缓坡路。

from

prep. （表示时间）从…，（表示原因）因为，（表示来源）来自…，（表示分离）与…分离[隔开]；

例句
...an abortive attempt to prevent the current President from taking office.
企图阻止现任总统连任的失败尝试

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

valley

n. 山谷，溪谷，峡谷，谷地，深谷，流域，[建筑]屋顶排水沟，屋面斜沟；

例句
A narrow steep path leads down into a valley and up the far side.
一条狭窄陡峭的小径向下伸进山谷，又从山谷的那一边向上延伸。

floor

n. 地面，地板，楼层，底部，议员席；vt. 铺地板，击败，打倒；

例句
According to police accounts, Mr and Mrs Hunt were found dead on the floor of their kitchen.
据警方称，亨特夫妇被发现死在家里厨房的地板上。