n.丰富；改进；浓缩
The American language owes much to its writers for its enrichment. 美国文字经过作家们的努力已得到极大的丰富。
It could even be at Natanz, Iran's enrichment plant, says Meier. 双方宣称阿联酋将放弃铀浓缩并签署该议定书。
Iran has revealed it has a second uranium enrichment plan. 伊朗透露已拥有第二个铀浓缩计划。
