He spent yesterday hidden away in his country retreat.

As you descend, suddenly you see at last the hidden waterfall.

一直往下走，最终你会突然看到那条隐秘的瀑布。

The precise details of the origins of life remain hidden.

生命起源的确切详情仍是个谜。

There was a sparkle in her eye that could not be hidden.

她眼中闪烁着一丝无法掩藏的亮光。

The picture lay hidden in the archives for over 40 years.

这张照片在档案室中藏了40多年。

Whatever is hidden is harmful (hence revelation equals security).

任何隐藏的东西都是有害的（所以披露就等于安全）。

The half moon is hidden behind some wispy clouds.

半轮月亮躲在淡淡的云彩之后。

We had kept its presence hidden with a strategically placed chair.

我们用一张摆放得很巧妙的椅子将它隐藏了起来。

Under all the innocent fun, there are hidden dangers, especially for children.

在所有简单无害的娱乐项目背后都隐藏着危险，特别是对儿童而言。

There are simply too many variables and too many unknowns in the equation.

这个方程式只是有太多变量和太多未解.

And as the unknown unknowns have turned into known unknowns, the system has been experiencing postmodern.

当那些一无所知的受骗者意识到发生了什么, 这个体系就会经历后现代的挤兑.

Yeahhh, all the Rockets unknowns getting shoe contracts cause of Yao and partly T-Mac . Sweet deal.

是的, 所有不知名的火箭队原都会因为姚和部分因为 麦蒂 而得到球鞋合约. 好事一桩.

The cities are full of the unknowns, and full of precious legacies and mysteries.

在那里,充满了未知, 充满了历经沧桑的宝贵遗产.

Some are trampled by destiny, lost forever in the endless unknowns of life.

一些人遭到命运的践踏, 在生活无知无尽的迷途中永远迷失自己.

Subjective uncertainty is about the " unknown unknowns "

主观的不确定性则关于 “ 未知的未知方面 ”

There are also plenty of unknowns.

现在还都是未知数.

Each equation involves five unknowns.

每个方程包括5个未知量.

There are still are lot of unknowns, but it is more clear.

虽然仍存在许多未知数, 但情况已经更加明确了.

The answer is obscured by a couple of big unknowns.

答案被大团的疑云所遮盖了.

The unknowns in the above equation are referred to the local numbering system.

上述方程中,未知数是属于局部编号系统的.

The unknowns in the equations are the values of the dependent variables at the node.

方程中的未知数是结点上因变量的值.