成为前兆的

But my analysis of USAir's business was both superficial and wrong. I was so beguiled by the company's long history of profitableoperations, and by the protection that ownership of a senior security seemingly offered me, that I overlooked the crucial point: USAir's revenues would increasingly feel the effects of an unregulated, fiercely-competitive market whereas its cost structurewas a holdover from the days when regulation protected profits. These costs, if left unchecked, portended disaster, however reassuring the airline's past record might be.

不过我对于美国航空业的分析研究实在是过于肤浅且错误百出，我被该公司过去历年来的获利能力所蒙骗，同时过分相信特别股可以提供给我们在债权上的保护，以致于忽略了最关键的一点︰那就是美国航空的营收受到毫无节制的激烈价格竞争而大幅下滑的同时，其成本结构却仍旧停留在从前管制时代的高档，这样的高成本结构若不能找到有效解决的办法，将成为灾难的前兆，不管以前航空业曾经享有多么辉煌的历史。

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。