For example, a company may be able to estimate accurately the aggregate number of shoes it will sell, but it may be uncertain about which specific types of shoes will sell more than other types.
例如，一个公司也许能够准确地估计它将销售的鞋子总数，但它可能不确定哪一种特定类型的鞋子将比其他类型的鞋子卖得更多。
He's said to be uncertain about his future.
据说他对他的前途没有把握。
You'll be uncertain about what it's telling you.
你会不确定它告诉你什么。
Other people might be uncertain about trying something new.
其他人可能会茫然尝试一些新的东西。
You may be uncertain about some of your coworkers and your boss.
可能会对一些同事或老板的态度不太确定；
Even if success is uncertain and hard to quantify, you can be certain about failure.
虽然成功具有不确定性，很难量化，但你却能够确定失败。
Sometimes you need to be confused, or uncertain about yourself, to reach your fullest potential.
有时你需要为了发挥最大的潜力暂时的对自己产生困惑和不确信。
Investigating the way people actually went about finding jobs in an uncertain environment, he believed, should be a central concern of the analysis of Labour markets.
他认为，调查人们在不确定环境下的实际求职方式，才是对劳动力市场进行分析的中心环节。
Similarly I have a hypothesis that when you are uncertain about something you are more likely to be influenced by others' choices and we're conducting an experiment to test this.
我做了一个类似的假设，即当你不确定的时候，你就更容易被他人的选择所影响，我们正在进行试验以检验这一假设。
Being open and transparent about the uncertain costs of new build in countries such as the United Kingdom would be a start.
国家开发新核计划不确定的成本应该是公开的透明的，比如英国将会是做出这方面表态的第一个国家。
If you're feeling unfulfilled at work or uncertain about a career path you chose based on the salary, it may be time to look at your future in that career.
如果基于你所获的薪酬，你对自己的工作或职业生涯无法感到满足，那么是时候该想想这份职业能带给你什么样的未来了。
By using the voltage stability analysis with uncertain factors of load variation considered in computation, more information about the critical point and the minimal power margin will be offered.
考虑负荷变化随机性的电压稳定分析方法可以更多地计及不确定因素，提供更丰富的电压稳定临界点以及最小功率裕度的信息。
The scene at the moment mixed with that in the past becomes uncertain and unoriented. However, we can't help to think about the question that whether the history can be washed away so easily?
眼前的景物混合着过往的沉积，变得毫无方向与不确定，但是我们不禁要思考：历史的沧桑是否就能这样被轻易地揉掉呢？
Retailers may be hoping that shoppers will loosen their purse strings in the run-up to Christmas, but consumers are likely to remain cautious about spending given the uncertain economic outlook.
零售商们也许希望消费者将随着圣诞节的来临增加消费，但是消费者却可能因不明朗的经济形势而保持消费谨慎。
Retailers may be hoping that shoppers will loosen their purse strings in the run-up to Christmas, but consumers are likely to remain cautious about spending given the uncertain economic outlook.
零售商们也许希望消费者将随着圣诞节的来临增加消费，但是消费者却可能因不明朗的经济形势而保持消费谨慎。
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