imperfections

the imperfections and injustices in our political system.

治体系中的缺陷和不公。

Even with a magnifying glass I couldn't discern any imperfections in the porcelain.

即使有一个放大镜，也不能发现瓷器的任何瑕点。

Considerable attention has been given to imperfections of information and of competition, to transaction costs, indivisibilities, and increasing returns, and to some of the relations among these.

而大量的关注集中信息的不完善、竞争的不完善、交易成本、不可分割性、递增的收益、以及它之间的一些关系。