And even if I had enough money, I knew that such diamonds are very difficult to find.

VOA: special.2009.07.18

It's very difficult even to keep in mind the conceptual difference between these two sorts of supplement.

要记住,这两种补充的不同是很难的。

耶鲁公开课 - 文学理论导论课程节选

Interesting. Even though the market seized up very dramatically afterwards and we had some of the most difficult short-term financial consequences of that failure?

有意思，尽管市场严重失灵,我们面临着,许多短期的,非常严重的后果？

斯坦福公开课 - 经济学课程节选

So middle-class families were generally having a very difficult time even before the crisis hit.

WHITEHOUSE: Discussing the Economy in Richmond

One is the intrinsic optimism of millennials, even in the face of very difficult economic challenges.

FORBES: Why Obama Won: Hispanics, Millenials Were The Difference

And I think it would be very difficult to even develop a potential approach to mind uploading without answering these questions.

FORBES: What's the Likelihood of the Singularity? Part Two: Uploading the Brain