未知

But there are also unknown unknowns: the ones we don't know we don't know.

但也有一些未知的未知，也就是那些我们不知道自己不知道的事物。

But there are also unknown unknowns — the ones we don't know we don't know.

但是也有一些是未知的未知物──有些我们是不知道我们不知道的。

But there are also unknown unknowns. These are things we do not know we don't know.

但也有没人知道的未知事情-----也就是我们不知道的未知事情。

But there are also unknown unknowns, the ones we don't know we don't know.

此外，我们还知道，有一些我们未知的未知事情，也就是我们不知道我们不知道的事情。

But there are also unknown unknowns. There are things we don't know we don't know.

但是，这世上还有未知的未知，那些我们不知道我们不知道的事情。

But there are also unknown unknowns -- the ones we don't know we don't know.

但也有未知的未知——那些我们不知道我们不知道的。

But there are also unknown unknowns - the ones we don't know we don't know.

但是也有未知的未知，那些事情我们不知道自己不知道。

But there are also unknown unknowns - the ones we don't know we don't know.

同时还有未知的未知——就是说我们不知道自己不知道。

But there are alsounknown unknowns - the ones we don't know we don'tknow .

但也存在未知的未知---那些我们不知道我们不知道的东西。

We now have a series of unknowns parameters, and equations that will allow for solution of the unknowns.

我们现在有一系列的未知参数，和方程，这将使为解决这一未知之数。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。