imponderables

It is difficult to take all these imponderables together and to fashion them into a simple definition of poverty in the United States.

把所有这些无法估量的因素加在一起，对美国的贫困问题下一个简单的定义是很困难的；

And that is a dangerous position for the American government to be in: life, after all, is full of costly imponderables .

而对美国政府来说，这可是个危险的境地，要知道，生活充满着需要付出高昂代价的不可测因素。

There are too many imponderables to tell whether this theoretical argument is what really counts in practice.

要判定这种理论观点在实践中是否真的有价值，有太多不可精确估量的因素。

a situation fraught with difficulties and imponderables.

充满困难和不测的境况。

In Hans's, I noted, there were too many imponderables.

我注意到汉斯的计划有太多的不可预见性。

At home there are too many imponderables: over how the health bill will play out in practice;

而在国内，不解之事太多，如现实中，医疗法案将如何操作的问题；

A situation or place fraught with difficulties and imponderables:

困境充满困难和难以估计之事件的情况或地方：