The footfall was an uncertain and shuffling one.

脚步声慢吞吞地，象是拖着步子在走。

What matter it though life uncertain be to all?

何必去管它，人生总是无定？

Meanwhile, the protests' political effect seems very uncertain.

同时，抗议者的政治作用似乎很不确定。

We may leave our partner uncertain where they stand or deeply aware of their inadequacies.

我让伴侣不知所措　或是不断让知道自己的缺陷。

They are more fallible, it's definitely an uncertain time.

更容易犯错误，这是一个不确定的时代。

He made uncertain movements, because everything in his head was vague and uncertain.

茫地走来走去，因为脑子里的一切都是模糊而不确定的。

Since the inputs into our models are uncertain, naturally, their outputs will be uncertain too.

我模型的输入是不确定的，自地，它的输出也是不确定的。

Whether all this ingenuity unravels any cosmic truth is uncertain.

所有这种独出心裁是否能解开宇宙的真相，还不确定。

The future of the ISS is uncertain.

国际空间站的未来是不确定的。

Being confused and uncertain around such concepts.

混淆和周围这样的概念不确定性。

How that process will work is uncertain.

这个过程将如何进行还不确定。

The two of you made us uncertain!

你俩把我搞得" 不确定" 了！

Talking about the future is always uncertain.

谈论未来总是不确定的。

But 'could' sounds a little more uncertain.

但是 could 听起来更不确定一些。

" My lady" ? said Ser Loras Tyrell, uncertain.

" 夫人？" 洛拉·提利尔爵士狐疑地询问。

The young woman stood, smiling at him–an uncertain, imploring, almost abject smile.

那女郎站在那儿对微笑着——一种没有把握的、乞求的、差不多是低三下四的微笑。

The election has left Israelis confused and uncertain.

这次选举让以色列面临疑惑和不确定性。

But as we know; the future is uncertain.

但正如我所知，未来是不确定的。

That the evidence was inconclusive, the science uncertain?

怀疑者（还）坚持（吸烟的结果）还没定论，科学也不够确定。

Its price is uncertain and its power limited.

价格不定，效力也是有限的。