But it is very difficult to get there.

但这段路却非常难走。

youdao

But it is very difficult to follow a pure top-down design.

但是，很难实现一个完全的自顶向下的设计。

youdao

Tolerance seems very simple, but it is very difficult to do.

宽容看似很简单，但是做起来却十分困难。

youdao

Much of the company has been privatized in recent years, but many workers are civil servants and it is very difficult to lay them off in France.

VOA: standard.2010.04.11

I'm able to move around, but it is very difficult.

我可以跳槽，但很难。

美国的失业情况 - SpeakingMax英语口语达人

So it's very difficult, but what I come down to is that you just have to place your energy on your breath, and every time you notice your awareness drifts to somewhere else, you have to recognize this drift and let it go.

因此这很难，但我总结的方法是,只需要把能量集中到呼吸上，每次注意力不集中,飘到别处时，要意识到意识的涣散，并放手不管。

普林斯顿公开课 - 人性课程节选

But it is very difficult to estimate size of a species from a distance - especially if you are unfamiliar with them.

BBC: 'Big cat' Canadian lynx was on the loose in UK in 1903

"We've made some progress with a third party but it is very difficult because of all of the formalities involved, " he said.

BBC: Investor confirms Blackburn talks

The Near Earth Object (NEO) database is working to do that, but it is very difficult to locate all of the objects either closer to the sun or behind it.

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