将“unevenness"翻译成中文

The quality and utility of the evaluations commissioned by country offices is, however, uneven

但是,由国家办事处委托开展的评价的质量和效用高低不均。

International trade is by definition a competition between companies on an uneven playing field.

根据定义,国际贸易是不同的公司在一个不平坦的运动场上的竞争。