run down 是什么意思

rundown[英][?r?nda?n][美][?r?nda?n]

n.（尤指商业）削减; 解释; 描述(~ on/of sth |通常单数); 纲要;

例句:

1.

Here is one rundown of this year's ongoing road, rail and subway projects.

以下是今年在建的公路，铁路，地铁工程概要。

2.

The rundown district has long been a bastion of the ppp, which had put up with or worked with lyari gangsters for decades.

这个破旧的小区长期以来都是ppp的基地，已经对这里的这些暴徒们忍受了或者说是与他们合作了数十年之久。