I find it most difficult to express with an adequate force that flash, that shiver, that impact of passionate recognition.

我发现要恰如其份地表现一刹那的那种颤栗，那种动了感情发现的碰撞，真是最为困难。

youdao

Their colorful pictures on the wall attracted my special attention, though it was difficult to tell what they were trying to express.

我特别关注他们墙上五颜六色的画，尽管我不知道他们想表达什么。

youdao

It would be very difficult to build software that can derive that relationship from all the possible ways to express it in XML.

构建可以从所有可能的XML表达方式中得出这种关系的软件是非常困难的。

youdao

And then watch what happens to the prose style and the difference in tone: I find it most difficult to express with adequate force that flash, that shiver, that impact of passionate recognition.

然后看看那些散文风格,及语调发生的改变：,我发现要恰如其份地表现一刹那的那种颤栗，那种动了感情发现的碰撞，真是最为困难。

耶鲁公开课 - 1945年后的美国小说课程节选

it's very difficult when one is so articulate and is able to express exactly what you want to say,

当一个人已经熟谙一门语言，能够用这门语言清楚明白地表达意思，

想学好英语吗？ - SpeakingMax英语口语达人

It also makes it increasingly difficult to express the complex unintended consequences of economic systems.

FORBES: The Lord Mayor Would Have Spoiled "A Christmas Carol"

Looking forward to this moment, I knew it would be very difficult for me to adequately express my feelings for these young men and women -- at least in a way that would allow me to get through this speech.

WHITEHOUSE: Armed Services Farewell Tribute for Secretary Gates

It's very difficult to express your feelings.

BBC: Paul Beshenivsky