mediocrity

The artist was frustrated by the mediocrity of his early sketches and worked hard to improve his style.

(Chinese) 艺术家对他早期素描的平庸感到沮丧，并努力改进自己的风格。

A culture of mediocrity within the company led to a decline in innovation and sales.

(Chinese) 公司内部平庸的文化导致了创新和销售额的下降。