很难保持有竞争力的定价。
很难保持专注。
发达国家很难保持人口规模。
It would be difficult for developed countries to maintain the size of population.
问题是，这种冲动很难保持。
一些移民拥护者担心，经济困难会令当地人很难保住工作。
Some immigrant advocates worry that hard financial times make it more difficult for natives to keep jobs.
在他的课上，许多学生如果不先喝一杯咖啡，就很难保持清醒。
Well, many students could hardly stay awake in his class without first drinking a cup of coffee.
他认为，好奇心是第三个关键因素，也是一个很难保持的因素。
Curiosity, he argues, is the third key factor—and a difficult one to preserve.
很多人都在赶时间，很难保持小心谨慎，因为他们更关心自己的速度，而不是你的安全。
A lot of people are in a rush, and it's very difficult to keep careful, for they would rather care for their speed than your safety.
明天难保不下雨。
你赶快跑，不然的话你生命难保啊！
网络捐款者也趋向于更难保留。
这导致测试用例很难保持最新。
This results in test cases being difficult to keep up-to-date.
生活在银河系，很难保持谦虚。
没有玩笑，而且很难保持积极的心态。
我自身难保了，这条烂规定可以废止吗？
Okay, so I'm endangering myself so that this evil principle can die?
年纪越大，你会发现越难保持以往的体型。
As you get older, you may notice that maintaining your usual weight becomes more difficult.
当然，在不久的将来很难保持这种增长速度。
It will, of course, be hard to maintain this pace in the immediate future.
然而，布什离任很难保证路线会往中间转移。
Yet Mr Bush's departure hardly guarantees a move back to the centre.
素食越是严格，就越难保证身体需要的营养。
The more restrictive a diet is, the more difficult it is to get all the nutrients your body needs.
有时候很难保持安静，因为这时候的你有点紧张。
It's difficult to keep quiet sometimes because you might be a little nervous.
当不希望的事情发生时，我也很难保持乐观平和。
It's very difficult to stay positive and balanced when things you don't expect happen.
规模太大难保？
所以古人说得好：”就是神在爱情中也难保持聪明。
and therefore it was well said，That it is impossible to love，and to be wise.
难保存吗？
很多用保姆的人都是银行从业者，而现在，他们已经自身难保。
Many of the people who employ nannies are bankers and they are suffering now," she added.
如果你不计划时间进行锻炼并全心投入，你就很难保持积极性。
If you don't plan time for exercise and dedicate yourself to it, it's hard to stay motivated.
我们知道有一段时间频率非常强烈自然，以至于很难保持平衡。
And we know that there have been times when the frequencies have been of such a strong nature that the balance has been difficult at times to hold.
在不长时间内连续两次被裁员之后，你可能很难保持进取的状态。
After two layoffs in quick succession, it can be hard to stay positive.
船上落后的制冷系统很难保存水果和蔬菜，有时引起船员们不满。
And poor refrigeration on its ships makes it hard to preserve fruit and vegetables, something that makes for griping on board.
船上落后的制冷系统很难保存水果和蔬菜，有时引起船员们不满。
And poor refrigeration on its ships makes it hard to preserve fruit and vegetables, something that makes for griping on board.
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