On the day her son began school, she meditated on the uncertainties of his future.

在她儿子入学那天，她深思了有关他未来的种种不确定因素。

Researchers studying how genes control animal behavior have had to deal with many uncertainties.

研究基因如何控制动物行为的研究人员不得不面对许多不确定因素。

Terrorism, economic uncertainties and general feelings of insecurity have increased people's anxiety.

恐怖主义、经济不确定性和普遍的不安全感增加了人们的焦虑。

Automatic control here should allow for smooth merging without the usual uncertainties and potential for accidents.

此处的自动控制应该允许平滑合并，没有通常的不确定性和事故的可能性。

Assisted migration could become a viable part of our rescue strategy, but there are a number of uncertainties and risks.

协助移徙可能会成为我们救援战略中可行的一部分，但也有一些不确定性和风险存在。

They tried to buffer themselves against problems and uncertainties.

他们尽力保护自己免受困难和不确定因素的影响。

Is it possible to enjoy a peaceful life in a world that is increasingly challenged by threats and uncertainties from wars, terrorism, economic crises and a widespread outbreak of infectious diseases?

当今世界，战争、恐怖主义，经济危机和大规模爆发的传染性疾病等威胁和未知因素层出不穷，人类能否在这样一个环境中享受和平生活？

But there are uncertainties.

但是，同时也存在着一些不确定性。

But China's suppliers face uncertainties.

但是中国的供应商面临不确定性。

China still faces big uncertainties in 2010.

中国在2010年仍将面临巨大的不确定性。

With an election, the uncertainties only multiply.

随着选举临近，不确定性在增加。

How can we help people deal with these uncertainties?

我们如何才能帮助人们解决这些不确定性问题呢？

It thus faces the same uncertainties as its competitors.

因此，它同竞争对手一样也面临着同样的不确定因素。

But the Oracle of Omaha faces a few uncertainties ahead.

但是这位奥马哈先知还是面临一些不确定性。

Corporate spending is dogged by other uncertainties.

企业支出也被其他因素所影响。

You see, uncertainties in measurements are essential.

现在知道不确定度，在测量中有多重要了吧。

So they now face uncertainties over their bosses’ succession.

所以他们现在都面临着公司继任人的不确定性的问题。

Narrowing these uncertainties will mean collecting more data.

要减少这些不确定性因素意味着要收集更多的数据。

These quarrels and uncertainties seem to me the essence of fiction.

在我看来，这些争论和不确定就是小说的精髓。

A measurement is meaningless without knowing the uncertainties.

如果不知道不确定度，测量将毫无意义。

Such uncertainties are inevitable in the early days of the new order.

在恢复新秩序的早期，此类不确定性无法避免。

Yet there remain many uncertainties, and the recovery is fragile.

但目前仍有许多不确定因素，这样的复苏是脆弱的。

The doubters are right that uncertainties are rife in climate science.

怀疑论者认为气候科学充满了不确定性，这并没有错。