难以

The principles, commonly used methods and criteria of data compression are introduced descriptively.

数字化多媒体信息尤其是数字视频、音频信号的数据量是极其庞大的，给存储、传输以及有效、快速获取信息都带来了严重的障碍，如果不对其进行有效的压缩就难以得到实际应用〔'。

At the same time, its policy and in reality it is very difficult to achieve the desired result.

同时，其政策和在现实中是很难以达到预期的结果。

The desistance of crime cannot exist in indirect intentional crime.

间接故意犯罪不存在犯罪中止，肯定论者的观点是难以成立的。

When we are hard to communicate with lovers, we think we are so despairing.

当我们发现自己和爱人难以沟通时，我们觉得绝望。

And as for the vague something — was it a sinister or a sorrowful, a designing or a desponding expression?

至于那种令人难以捉摸的东西——那种表情是阴险还是忧伤，是工于心计还是颓唐沮丧，——一个细心的旁观者会看到这种表情不时从他目光中流露出来，但是没等你探测暴露部分的神秘深渊，它又再次掩盖起来了。

Applying the traditional design theory and routine construction technology, it is very difficult to prevent surrounding buildings or structures from destabilization.

这种环境中的深基坑工程，如果应用现有基坑工程的设计理论和常规施工技术已经难以满足保护基坑周围环境及自身稳定性的要求。

It is characterized by better function, aggressiveness, destructiveness, and adaptability which makes it superior to any separate defense tactic.

具有战术功能的完善、防守的攻击性和破坏性等特点，在防守的针对性和对进攻变化的适应性等方面都比单一防守战术具有难以比拟的优越性。

When your soul was taken up by it, you will find it was difficult to detach.

它一旦占据你的心灵，你将难以割舍。

I'm not saying it's undetectable, but I do think it would be difficult to detect.

" "我不是说这是不到的，但我认为那将是难以察觉。

That is, it jumble s up it's program code to make it difficult to detect.

这意味着它把搅乱了它的程序代码，从而使它难以被发现。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。