I thought the work would be difficult. In actual fact, it's very easy.

我原以为这工作会很难，事实上却很容易。

《牛津词典》

That sounds rather simple, but in fact it's very difficult.

那听起来很简单，但实际上非常难。

《柯林斯英汉双解大词典》

In fact, to learn with success is not a very difficult task if you follow some basic rules.

事实上，如果你遵循一些基本的规则，成功地学习并不是一件非常困难的事情。

youdao

One of the things that a lot of observers have been concerned about is the fact that there could be a change in tactics away from the kind of spectacular and very difficult operations to conduct to operations that could be launched in far greater numbers and might have less individual impact but which in the aggregate could sow a great deal of terror.

VOA: standard.2010.05.05

I think it's important to get the spending cut too It's very...it's much more difficult to work on the spending in fact but that's essential.

我觉得，同时还应当削减财政支出呢,尽管事实上这个更难做到,但至少这一点至关重要。

斯坦福公开课 - 经济学课程节选

It is in fact a very, very difficult and derivative act of the mind to try to forget that I am looking at a sign that says 'exit' and, in fact, just looking at what is there without knowing what it is.

事实上，试图忘记那个写着存在的标志,和只知道它存在而不知道它是什么，是非常难的事情。

耶鲁公开课 - 文学理论导论课程节选

It is, in fact, very difficult to make a radical branded-product leap and succeed.

FORBES: Red Baron

In fact, it can be very difficult to spot when the ego masquerades as selflessness.

FORBES: Your Ego and the Bad Decisions It Makes

But learning to program is, in fact, difficult, and getting schools particularly public High Schools to introduce new curriculum is very slow going.

FORBES: Can Obama Convince High Schools To Teach Kids To Code?