There was a short mumbled argument, punctuated with curses, and uncertain feet ascended the stairs.

外面传来一阵模模糊糊的争论声，夹杂咒骂声，接就是有人摇摇晃晃上台阶的声音。

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。

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

他们更容易犯错误，这是一个不确定的时代。

This was a speech to college students fearful about their future in an uncertain world.

这是对一群即将踏入一个充满不确定的世界、对未来充满恐惧的学生们所做的演讲。

Things won't always end up as you think, but you will gain valuable lessons along life's uncertain path.

事情的结果未必如你们所，在不确定的人生道路上，你们将获得宝贵的验与教训。

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

那女郎站在那儿对他——一种没有把握的、乞求的、差不多是低三下四的。

To this day, it's uncertain what was going through her head.

直到今天，我们都不知道她当时在什么。

That the evidence was inconclusive, the science uncertain?

怀疑者们（还）坚持（吸烟的结果）还没定论，科学也不够确定。

If something is up in the air, it is undecided and uncertain.

如果某事飘浮在天空，就意味未决定或者是不确定。

Whether this jolt of reality woke him up or not is uncertain.

究竟是不是现实的震撼将他惊醒，我们不确定。

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

我们让伴侣不知所措　或是不断让他知道自己的缺陷。

But he was quite uncertain as to the time.

他不确定具体时间。

And they did so with their eyes open: accepting that the road ahead will be uncertain at times, but believing that it leads towards a brighter future for their children — and their grandchildren too.

脱欧的前行之路充满了变数，同时也坚信，这将引领我们的子子孙孙，迈入一个更光明的未来。

Our deep levels of connection and need for one another are a weakness that infectious diseases exploit, but our interdependence is also a source of strength and vitality in uncertain times.

我们之间的深厚联结和相互需要成了为传染病所利用的弱点，我们之间的相互依存也是不确定时期里力量和活力的源泉。

I know that the world is an uncertain place right now that many families and communities across the globe are facing unimaginable challenges from conflict to energy crisis and food shortages.

我知道现在对于很多家庭和团体来说，整个世界是一个充满未知的地方，他们面临难以象的挑战，从局部冲突到能源危机，还有粮食短缺。

The future of the ISS is uncertain.

国际空间站的未来是不确定的。

The process of separation is still scheduled to begin on March 29th but without an agreement in place it would be what's called a no deal Brexit, a disorderly, uncertain separation that could hurt the British economy at least temporarily.

分离过程仍定于3月29日开始，如果没有达成协议，这将是所谓的不达成协议的脱欧---- 一种无序、不确定的分离，至少只是暂时伤害英国济。

These are some questions Israelis are asking in very uncertain times.

这是以色列人在如此动荡的时期关心的问题。

But the mess that Wall Street made, is the mess that Main Street is now feeling as bank react with a sharp tightening of credit in a highly uncertain market making business loans harder to come by.

是华尔街制造的乱局却波及到了其他街上。银行随即提高了信用评级，这使得贷款变得更加困难。

It forces us to revisit the hidden past or confront an uncertain future.

我们会被迫要重新回被藏起来的过去，或者正视面对不确定的未来。