我们缺少别人进化好的自我防卫，我们的心易碎并难以修复。

We lack the defenses others have evolved; our hearts are easily broken and hard to repair.

youdao

即使病情较轻也往往会遇到学习困难并难以集中注意力。

Even milder cases often experience learning difficulties and have problems concentrating.

youdao

它将倒转国际间日渐形成的对于鲸鱼保护的共识并难以理解地使商业捕鲸合法化。

It would reverse the emerging global consensus for whale conservation and inexplicably legitimize commercial whaling.

youdao

That's...these are trends that are unfolding rather than definite...that can be analyzed with any certainty at this point.

这些都是表面看来的趋势,并不是绝对的,从现在来看也难以下定论。

普林斯顿公开课 - 国际座谈会课程节选

But in any case, this is a well-known term used by Jakobson in this essay which is, like all such terms that somehow wander into other languages, difficult to translate.

但是这个,雅各布森在论文中使用的词汇出名了，并进入了其他语言，而且难以翻译。

耶鲁公开课 - 文学理论导论课程节选

Now the question is "how does it expand" and "why is it so difficult for us to understand, accept, assimilate and live according to the fact that we can make a difference, if we understand that what we need to understand is how change happens.

问题是“它如何扩大“,以及为什么我们难以理解，我们能够做出改变这个事实,并接受，被同化以及据此生活，如果我们能了解我们需要理解的,是改变如何发生。

哈佛公开课 - 幸福课课程节选