be enriched

The agreement spells out that vets must be continuously educated and preferably board-certified, that animals’ environments must be enriched, that the company must document its efforts to place retired research animals for adoption, and that it must immediately hire an outside agency to assess staffing needs at all its facilities and meet those new standards.

Uranium, a heavy metal, must be enriched to be used for nuclear purposes.

Coal mining waste, for instance, can be enriched in rare earth elements; scientists with the Department of Energy are currently working out the best ways to extract them.

Instead of lecturing them about sex or morality, Benedict urged them to see that their lives would be enriched by faith rather than diminished by an ancient set of prohibitions.

Many people’s lives will be enriched by people having read this article.