这两个队员配对儿，难以对付。

The two players together make a formidable combination.

《牛津词典》

可以做些什么来削弱难以对付的对手们的影响呢？

What may be done to reduce the influence of intractable opponents?

《柯林斯英汉双解大词典》

一种难以寻找而且难以对付的坚果。

A hard nut to crack and find!

youdao

Milton's interest in moments of blurriness and of visual indistinctness suggest that the distinction between good and evil is actually never that clear.

弥尔顿对偶尔的模糊不清,以及视觉上的难以区分的兴趣暗示出,善与恶之间的区分从来就没有清晰可辨过。

耶鲁公开课 - 弥尔顿课程节选

And if you look on that page, about in the middle, this is Enoch describing his foster mother: "'This woman was hard to get along with.

如果你翻到小说中间的那页，这就是阿纳克,对他养母的描述，你总是难以与这个女人相处。

耶鲁公开课 - 1945年后的美国小说课程节选

Back to this graphic again: unpredictable food supply occurred on the left but doesn't occur on the right.

再回到这张图,对左边的人而言,食物供给难以预计,而右边却并非如此

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选