Some San Jose residents say that as inequality has grown in recent years, upward mobility has become much more difficult to achieve.
圣何塞的一些居民表示，随着近年来不平等现象的加剧，实现向上流动变得更加困难。
Nothing is easy here, progress is difficult to achieve and it is difficult to sustain and build on.
他说：“在这里，什么事都不容易，很难取得进展，而且很难保持和进一步推动。”
Another quality of line that's more difficult to achieve is variation in the softness and hardness.
线的另一性质更加难以企及，那便是软硬的变化。
This goal will probably be more difficult to achieve than anything else the foundation works on.
和基金会从事的任何其它工作相比，这个目标或许更难实现。
As Chang is in his 60s, he finds it difficult to achieve his goals for CIMC Raffles by himself.
当章立人60岁时，他发现靠他个人很难实现中集集团来福士的目标。
But getting artwork exhibited publicly is difficult to achieve and I want to open that door for people.
要公开展示艺术作品并非易事，我要为大家打开一扇门。
You see the descriptions we give the the word "goal" implies your objective will be difficult to achieve.
你知道，我们赋予“目标”一词的说明意味着你的目标很难完成。
The only problem is that it can be extremely difficult to achieve such a following, which is where we come in.
唯一的问题是，拥有这么多追随者是一件很难的事，而这也正是我们的切入点。
Transparency can be difficult to achieve (depending on your work environment), but can be greatly beneficial.
透明很难实现(取决于你的工作环境)，但却非常有益处。
Yet progress is gained in a manner that is difficult to achieve when you are without challenges in your life.
但是进展依旧获得，要知道如果你们的人世经历中缺乏挑战将很难有真正的进展。
Visibility is very easy to acquire, reputation to go through their own efforts, loyalty difficult to achieve.
知名度很容易获取，美誉度要经过自己的努力，忠诚度很难达到。
While infinite horizontal linear scalability is difficult to achieve, infinite vertical scalability is impossible.
虽然无限的水平线性可扩展性是难以实现的，无限的垂直扩展性也是不可能的。
In such cases, it might be very difficult to achieve semantic transparency through natural language schema annotations.
这种情况下，通过自然语言的模式注释来获得语义透明性可能非常困难。
I like things that are difficult to achieve-things that can't get done in a day but take much more time and effort.
我喜欢那些历经困难才能达成的事情——那些不是一天就能做完成，而是需要花去更多时间和努力才能完成的事情。
Finally, as I discussed earlier, threads out of the server's control make it difficult to achieve an orderly shutdown.
最后，正如我以前讨论过的，不受服务器控制的线程会造成有序关机很难实现。
In software, though, things are not often designed in that way, mainly because good modularity is difficult to achieve.
但是，在软件中，事物则并不是按照这样的思路设计的，这主要是因为实现良好的模块化非常困难。
Unless the epidemic of NCDs is aggressively confronted, the global goal of reducing poverty will be difficult to achieve.
除非我们能够积极处理非传染性疾病的流行问题，否则，将难以实现减贫的全球目标。
Semantic interoperability is very difficult to achieve for various reasons. The following are examples of why this happens.
由于各种原因，语义互操作性很难实现。
In fact, given that traditional economic forecasts miss structural breaks all the time, it is both difficult to achieve and useful.
事实上，考虑到传统经济预测始终忽略了结构性突变，这种预测不仅难度很大，也很有用。
But the experience of other Asian countries over the past fifty years suggests that this rebalancing is extremely difficult to achieve.
但是从过去半个世纪里其他亚洲国家的经验看来这样的再平衡是极其难以达到的。
In an age where cynicism reigns, and where stress is an integral part of our lives, happiness seems more and more difficult to achieve.
在这样一个愤世嫉俗的时代，压力如影随形，幸福似乎越来越难以企及。
Iterative testing is difficult to achieve if quickly developed components are dependent on key interfaces with longer development cycles.
如果快速开发组件依赖于关键接口且开发周期较长，迭代测试就难以实现。
The goal will be more difficult to achieve as G.M. and Chrysler mount their own turnaround efforts with less debt and leaner organizations.
如今，伴随着通用公司、克莱斯勒相继走出破产保护，利用更低的债务来复苏这一目标似乎更难实现。
The present study included a relatively small number of patients, making significance difficult to achieve for most of the variables analyzed.
本研究纳入的病例数相对较少，使得对于多数变量的分析变得很困难。
This strategy allows powerful code refactoring tools, which are much more difficult to achieve using the same methods for statically typed languages.
这一策略允许使用强大的代码重构工具，而使用静态类型语言的同样方法来实现此功能则困难得多。
While this should be simple task to perform, it is surprisingly difficult to achieve in the full context of possible failures and acceptable efficiency.
这个任务本身不难完成，只是要让它在各种可能的错误环境中依然能够行之有效就很困难了。
Thus, aggregation is handy but difficult to achieve, since it requires crawling through all the available data sources and scaling the search engine.
因此，聚合的方式非常方便，但是却难以实现，因为它需要通过爬网的方式处理所有可用的数据来源，并且扩展搜索引擎。
Thus, aggregation is handy but difficult to achieve, since it requires crawling through all the available data sources and scaling the search engine.
因此，聚合的方式非常方便，但是却难以实现，因为它需要通过爬网的方式处理所有可用的数据来源，并且扩展搜索引擎。
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