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

Apologies are always difficult to express.

道歉常常很难开口。

youdao

Such constraints are difficult to express in a DTD.

这种约束很难在DTD中表示。

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 allows users to send emotive feelings that may be difficult to express verbally.

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

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It's very difficult to express your feelings.

BBC: Paul Beshenivsky