这种面粉通过添加营养素来强化其营养价值。

This flour is ___enriched with added nutrients to enhance its nutritional value.

学习一门新语言极大地丰富了我的生活体验。

Learning a new language has greatly ___enriched my life experience.

这家工厂将铀浓缩到更高浓度以供核电站使用。

The factory ___enriched the uranium to a higher concentration for use in nuclear power plants.