While some of my co-bloggers and illustrious guests have been confronting the very difficult issue of science and morality, I’ve been drifting elsewhere.
虽然我的一些博客朋友和著名的访客们一直面临着非常困难的科学和道德问题，我却至今还没有谈及到这个问题。
While it might seem very difficult, focusing on one goal at a time is the most powerful way of achieving your goals.
虽然这看起来非常困难，但是专注于一个目标是达成目标的最有效办法。
Paradoxically, while getting a visa for Iran can be very difficult, once you have one it is normally just a formality to have the time limit extended.
看起来伊朗签证似乎非常困难，但是一旦得到了签证，签证的延期通常只是一个手续问题了。
While this is possible to do well, it is very difficult, and most teams do not succeed.
虽然也有可能做好，但是非常困难，而且大部分团队都不能成功。
While this is very interesting, these are indeed difficult goals to achieve.
虽然这很有意思，这些实际上是非常难于实现的目标。
It is often forgotten that money is to be made by leveraging the collective long tail, however, making money while being part of the long tail is very difficult.
人们常常忘记利用聚集而成的长尾可以赚到钱，然而，本身是长尾的一部份还能赚到钱非常困难。
While I did enjoy the training on most days, sometimes it was a little difficult to get motivated because I live on a very small island and did not have the luxury of a coach or any training partners.
大多数时候我很享受这种训练，但有时候还是会觉得有点缺乏动力，因为我住在一个小岛上，在这里我不敢奢望拥有一位教练或者训练搭档来激励我。
This may be very difficult (or even impossible) to accomplish while maintaining links to your code's history.
这在维护代码历史记录的链接时是很难(或甚至不可能)完成。
It is very difficult to save while on the dole but I am determined.
靠救济金想存一些钱是很难的，但我决心已定。
But it was very difficult to have two or three cycles of layoffs while you're asking people to work harder.
但是，一边要求人们卖力工作，一边却要进行2-3轮裁员，做到这一点非常困难。
Now while these findings are suggestive, countries can be different in so many different ways that it's very, very difficult sometimes to account for all of these possible differences.
现在虽然这些发现能说明问题，但是比较的国家之间在很多很多方面都有差异，有时候很难将这些差异归结为某个原因。
While English can be difficult to learn, it is a very useful tool for communication.
尽管英语学起来可能有点难，但它是非常有用的交际工具。
After entering into the 21st century, brand competition has become the core of marketing competition, while the development of Chinese brand is very difficult.
进入21世纪，品牌的竞争已成为市场竞争的核心内容，但中国本土品牌的成长却步履艰难，阻力重重。
While they valued her hard work and ambition, those who got to know her best found it difficult to like her very much.
她的婚姻却一塌糊涂。人们对她的评价都基于她的工作和野心，真正了解她的人却发现很难喜欢她。
It is easier to move around in a big city, while in smaller cities or in the countryside, it is very difficult to travel without a car.
在大城市里坐地铁的话是很方便的，然而在小城市里或在乡村的话，没有车去旅游的话是非常困难的。
While shale gas production target is significantly reduced, it is still very difficult for China to achieve this goal.
虽然页岩气的产量目标被大幅下调，中国要想难实现这个目标还是很难。
It's been said that "graphical user interfaces make easy tasks easy, while command line interfaces make difficult tasks possible" and this is still very true today.
人们说，“图形用户界面让简单的任务更容易完成，而命令行界面使完成复杂的任务成为可能”，到现在这句话仍然很正确。
Machine translation is an open problem while its evaluation is also very difficult.
机器翻译是项很困难的研究课题，而机器翻译评价也不是一件容易的事。
Because the size of a sensor node is generally small, the battery power is very limited, while the nodes are usually deployed in broad areas, and it is difficult to replace the batteries.
因为传感器节点一般比较小，利用能源非常有限的电池供电，而节点又通常在广阔的环境下部署，难以更换。
While present parallel programs mostly machine dependent, so the transportability of parallel programs are very poor and it is very difficult to predict the program performance.
而现有的并行程序绝大多数是依赖机器的，因此并行程序的可移植性差且难于预测性能。
This trick should be done while moving slowly. Landing this trick is very difficult.
这个动作应慢速滑时做，站上去是很困难的。
Inzaghi just loves to score while Kaladze is very instinctive and has come good after a difficult year.
因扎吉热爱进球，与此同时卡拉泽则是出于本能，并且艰难的一年之后很好的归来了。
While the information is quite difficult to estimate since it is very subtle and the pulse duration is very short.
但由于这一信息非常微弱，且脉冲信号的持续时间很短，多普勒变化率的精确测量也十分困难。
Thus it's very difficult for the graduates to find a job while the travel agency cannot find the satisfactory graduates and feel worried.
这样，高职旅游专业教育的毕业生存在就业难的问题，而旅游企业单位又聘不到合适人才。
Of course when a player wants to go somewhere else for a while he is not happy but it is very difficult to legislate on that.
当然，如果一个球员感到不开心，想到别的地方去转悠转悠，俱乐部也不能阻止他们。
While in the real world, signals are often nonlinear and non-stationary and their length is often very short, which makes the processing of such signals a difficult task.
然而，现实中的信号大多是非线性、非平稳的，并且数据长度有限，这使得分析处理此类信号成为一项复杂的工作。
While it's very difficult to achieve the improvement of ecological environment by emphasizing the "Comprehensive control" basing on 100% self supply of grain.
而强调1 0 0 %的粮食自给之基础上的“综合治理”则很难实现生态环境的改善。
In these regions, potential of oil resources is big. While seismic-geologic conditions are complex and the data acquisition of seismic prospecting is very difficult.
这些地区油气资源潜力大，但地震地质条件复杂，地震勘探资料采集困难。
Requiring little target's information, the passive radar concealed attack of antiship missiles in an important attack method today, while it is very difficult to get targets' information.
反舰导弹的纯方位发射对目标信息要求不高，在目标信息的探测越来越艰难的今天，是反舰导弹较为重要的一种发射方式，也将会成为未来海战场上常用的作战方式。
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