你怎么也猜不到她有难以解决的问题。她总是那么乐观。
You would never guess (that) she had problems. She's always so cheerful.
集群一直以来都是难以解决的问题。
但这是一个难以解决的问题。
这是一个非常难以解决的感情之一。
我们面临一个难以解决的问题。
我遇到一个难以解决的问题。
网络欺凌就目前阶段是难以解决的问题。
这是一个难以解决的问题。
这封信给这个家庭带来了一个难以解决的问题。
The letter presented the family with a problem that would be difficult to solve.
这也是此次危机为何如此恼人和难以解决的原因。
That is what makes its crisis so troubling—and so hard to treat.
硬件模拟可以解决使用其他方式难以解决的问题。
Hardware emulation can get you around problems you can't easily bypass otherwise.
有几个难以解决的疑问，这项研究是回答不了的。
Several awkward questions are left unanswered by this study.
这是一个相当复杂的问题，这是一个难以解决的。
This is quite a complicated problem and one which is difficult to solve.
暴雨引起的山体滑坡一直是个难以解决的老大难问题。
不管新技术如何有效，难以解决的病例仍会不断出现。
Regardless of these new techniques, situations difficult to resolve continue to occur.
他说：“有着各种难以解答的问题，难以解决的挑战。”
'There are difficult questions, difficult challenges,' he said.
在科学实验中使用动物引发了一些难以解决的道德问题。
The use of animals in scientific tests raises some difficult ethical questions.
正确。单身父母的增多对于任何社会来说都是难以解决的问题。
The rise of single parenthood is difficult for any society to deal with.
这将给议会留出余力来处理两个重要的，难以解决的，欧洲研究领域的问题。
This should leave the parliament with the energy to deal with two important, difficult to resolve, issues for European research.
对自然景物的模拟一直是计算机图形学中最难以解决的问题之一。
Simulation of natural phenomena has always been one of the most difficult tasks in computer graphics.
在经济危机留下的后遗症中，堆积如山的主权债务或许是最难以解决的。
Of the many unpleasant legacies left by the economic crisis the mountain of sovereign debt may prove hardest to erode.
不过，这在运行时可导致操作人员无法预见的复杂错误场景和难以解决的性能问题。
However, this can lead to complex error scenarios and hard to resolve performance issues at runtime that cannot be foreseen by operations people.
在化学工业和能源生产中，结垢是一个长期存在而又难以解决的实际问题。
In chemical industry and energy production, scale is a long-standing and actual difficult problem.
然而，使用这些具有毒性的化学药物治标不治本，并会带来更多难以解决的环境问题。
The use of these types of chemicals has only added to the environmental problems that have existed for many years.
世界性的饥饿问题是个极其难以解决的问题，我恐怕人们在我这一辈子都找不出解决的办法。
The question of world hunger is a very hard nut to crack . I doubt if we'll find the answer to it in my lifetime.
您将看到，有时候通过改变抽象风格，可以解决一些看似难以解决的设计问题，并且可以简化代码。
And you'll see that you can sometimes solve seemingly intractable design problems - and simplify your code - by changing abstraction styles.
灭活病毒疫苗没有此种副作用，要提供保护则需要多剂量，但在流行地区这可能证明是难以解决的。
The inactivated virus vaccine does not have this side effect, but multiple doses are required in order to provide protection which may prove problematic in endemic areas.
在通过可重用组件组装软件的过程中，最难以解决的问题就是如何将软件部署到日益增长的连接设备上去。
When assembling software out of reusable components, the task of deploying software onto an ever increasing number of connected devices is not trivial to solve.
其中的一个问题是，尽管工业生物技术中使用的原材料不来自矿物燃料，但仍会引起难以解决的道德问题。
One problem is that even though the raw materials used in industrial biotechnology may not be derived from fossil fuels, they are still capable of stirring up some difficult ethical questions.
其中的一个问题是，尽管工业生物技术中使用的原材料不来自矿物燃料，但仍会引起难以解决的道德问题。
One problem is that even though the raw materials used in industrial biotechnology may not be derived from fossil fuels, they are still capable of stirring up some difficult ethical questions.
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