Kotloff says that influenza is a wily virus, one that is difficult to predict.
Kotloff说，流感病毒是狡猾的，很难预知。
It will always be difficult to predict how modern technologies will interact with popular discontent.
想要预测到现代通讯技术是如何与民众的不满互动起来，那真是太难了。
Thus, the influence of technology on Earth's carrying capacity is difficult to predict and discern.
然而技术对地球承载能力的影响很难预测和被察觉。
However, he cautioned that it was very difficult to predict how large the ultimate decline would be.
但他警告称，很难预测最终跌幅会有多大。
That's what makes it so difficult to predict exactly how rapidly we might see the Arctic go ice-free.
这就是为什么我们很难准确预测最早什么时候能看到无冰的北极。
It is often difficult to predict and prepare manufacturing systems for rapid fluctuations in product demand.
经常很难预测产品需求的快速波动和为之准备制造系统。
Analysts complain that the scheme has so many uncertainties that it is difficult to predict any outcome.
分析师抱怨说这项计划有太多不确定因素，因此很难预测出任何结果。
THE moment when a throng of peacefully moving people turns into a panicked herd is difficult to predict.
何时一群静静行走的人们突然变为受惊的群体，这是很难预测的。
It is difficult to predict how long it will take to develop human-level artificial general intelligence.
很难预测开发出达到人类水平的人工整体智能将花多少时间。
This means that their internal operations can be hard to understand and their behaviour difficult to predict.
这意味着它们的内在经营很难理解并且很难预料它们的行为。
If the dog feels he is protecting his property, it is difficult to predict whether or not he will attack.
如果狗觉得自己是保护自己的财产，这是很难预测他是否会攻击。
But he also admits it is difficult to predict what he will actually do now he is the state's chief executive.
然而，他还是承认现在十分难估计帕特深接下来会采取什么措施，毕竟现在他不是参议院而是身为纽约州的最高执行长官了。
Even in stable, high growth markets, adoption rates of such a disruptive platform can be difficult to predict.
即使在稳定，高速增长的市场，这种破坏性的平台的采用率可很难预测。
15% of pregnancies and childbirths need emergency obstetric care because of risks that are difficult to predict.
由于难以预测的风险，15%的妊娠和分娩需要紧急产科保健。
This is difficult to predict in advance and is best to identify it with early testing of the actual message flow.
预先预测它是困难的，最好在实际消息流程的早期测试中把它搞清楚。
As the Court says in Pennsylvania Coal, this is a matter of degree and therefore difficult to predict in advance.
正如最高法院在宾州煤炭案中所说的那样，有一个程度的问题，所以很难事先判断。
About 12 percent of Earth's land surface is now used for crops. Some of the consequences are difficult to predict.
地球表面陆地大约12%已经被开发种植农作物，其后果还是很难预测的。
Customers are less loyal, and global competition more fierce, making it difficult to predict where sales are going.
忠诚的客户越来越少，全球竞争日益激烈，这些因素让销售额更加难以预测。
But Wu cautioned that it's very difficult to predict the Verizon's iPhone's impact on Android in a quantifiable way.
ShawWu说很难用量化方式预测iPhone对Android手机的冲击。
When the nature of the data to be captured is unclear or difficult to predict, such flexibility can be an absolute necessity.
如果数据的本质是不清楚的，或者是难以预测的，那么这样的灵活性是绝对必要的。
As a process it can be difficult to predict (and thus potentially expensive to pursue), but it has always delivered a great game.
作为一个过程，它很难预期(因此花费昂贵)，但这能够让我们发布一个不错的游戏。
The outcome of such a dialogue is difficult to predict, but it cannot be managed unless America clarifies its own purposes to itself.
这样的对话的结果很难预测，但它肯定不能成功除非美国自己搞清楚自己的目的。
All this makes it difficult to predict POD's impact on publishing's supply chain, which is already in upheaval, mainly because of the Internet.
所有这一切使得我们很难预测按需印刷对出版供应链的影响，而这种影响已经大幅出现，主要是因为互联网。
Currencies are notoriously volatile and difficult to predict. Even investment Banks with their armies of analysts frequently call it wrong.
货币的不稳定性和难预测性是众所周知的，就连投资银行和它们的分析师军团，也常常会出现误判的哦。
We don't. Not only is it difficult to predict what a paper's citation performance will be, but citations are an unreliable measure of importance.
我们不这样认为，不仅是因为预测文章的引用率是非常困难的。同时，引用率也不是可信的评估文章影响的因子。
It is difficult to predict the knowledge you need in order to fully understand the customer's business environment, because every business is unique.
难以预测您需要哪些知识来用以完全理解客户业务环境，因为每个业务都是惟一的。
It's difficult to predict the exact shade the moon will take, which will depend on how much dust and clouds are in the atmosphere during the eclipse.
很难预测那时月面呈现的确切的色彩，因为这是由发生月食时大气中的粉尘和云朵决定的。
It today's business climate, as markets constantly change and become more difficult to predict, some analysts believe that long-term planning is pointless.
当今的商业环境，因为不断改变的市场而变得更难预测，一些分析家相信长期的计划是没有意义的。
It today's business climate, as markets constantly change and become more difficult to predict, some analysts believe that long-term planning is pointless.
当今的商业环境，因为不断改变的市场而变得更难预测，一些分析家相信长期的计划是没有意义的。
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