The gold seekers quickly learned that life in Alaska would be extremely difficult.

VOA: special.2009.02.04

Well, Wright finds this an extremely difficult request to respond to.

理查做不到。

耶鲁公开课 - 1945年后的美国小说课程节选

It was extremely difficult.

非常难。

未来的医生 - SpeakingMax英语口语达人

Details of the release have not been made public. In a subsequent interview with Canadian Television, Lindhout described her life in captivity as "extremely difficult."

VOA: standard.2009.11.26

And this is no surprise if what we are is the workings of our physical brains, but it is extremely difficult to explain if one is a dualist.

如果我们的本质就是生理大脑的活动,那这也就没什么可惊奇的,但对于二元论者来说,解释这些却是非常困难的

耶鲁公开课 - 心理学导论课程节选

As you know, the situation is extremely difficult for everyone involved.

VOA: standard.2009.07.20

Now, as I said last time, the subject of free will--or free will, determinism, causation and responsibility, this cluster of problems-- is an extremely difficult and complicated physical problem.

正如我上次所说的,自由意志这个主题 或者说自由意志,决定论,因果论,责任,这一堆问题,是极端困难和复杂的物理问题

耶鲁公开课 - 死亡课程节选

"You might take this as a general principle, that if you have revolutionary transformations, it's extremely difficult to go back to legal,legitimized, constitutional transfers of power that revolutionary settlements, in fact,are quite dangerous as a precedent.

VOA: standard.2009.09.01

We all know that the situation there is extremely difficult.

大家都知道阿富汗的局势很紧张。

普林斯顿公开课 - 国际座谈会课程节选

But analyst Ryan Radia says that even if that is the case, governments could still lose because modern technology allows virtually anyone to circumvent the bans and use other encryption methods that are extremely difficult to break.

VOA: standard.2010.08.02

An extremely low body temperature can cause the heart to beat so slowly that a pulse may be difficult to find.

VOA: special.2009.12.30

But he was also extremely large and difficult to control.

VOA: special.2009.02.23

It was extremely hard work under very difficult conditions.

VOA: special.2009.02.11