1·He made a difficult climb.
他作了一次艰难的攀登。
—— 《新英汉大辞典》
2·It's not a difficult climb.
这次攀登并不难。
3·Achievement as slide, a very difficult climb, slide down but in an instant.
⊙、成绩就像滑滑梯，爬上去很难，滑下来不过一瞬间。
4·It is a very difficult climb because there are not many places to put your hands and feet.
要爬上去很难，因为没有很多地方可以用来放手和脚。
5·It was very a very difficult climb because there are not many places to put your hands and feet.
要爬上去很难，因为没有很多地方可以用来放手和脚。
6·It is a very difficult climb, because there are not many places to put your hands and feet.
非常难攀，因为没有很多地方可以给你放手脚。
7·At first it was not a difficult climb, but then they came to a place which was not so easy.
开始并不难爬，但是后来他们来到一个不好走的地方。
8·The parks already attract specialist visitors, including mountaineers, who come to climb the technically difficult peaks, and fishermen, lured by the salmon and trout in the region's rivers.
这些公园已经吸引了专业游客，包括来攀登技术难度高的山峰的登山者，以及被当地河流中的鲑鱼和鳟鱼吸引的渔民。
9·It's not too difficult to climb up the tree.
爬上这棵树不是太难。
10·As you move further to the right, it is the second path, which is harder to climb with difficult holdings and turns.
当你进一步向右移动时，是第二条路，这条路更难攀爬，握稳和转弯都很有难度。