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1·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。

2·He's said to be uncertain about his future.

据说他对他的前途没有把握。

3·You'll be uncertain about what it's telling you.

你会不确定它告诉你什么。

4·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。

5·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；

6·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。

7·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。

8·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。

9·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。

10·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。