n.丰富，改进，肥沃，浓缩
The sound of the artillery is always an enrichment to his work.
炮声不停地在给他的工作助兴.
Job enrichment should be distinguished from job enlargement.
工作丰富化和工作扩大化应加以区分.
Books are an enrichment of life.
书籍乃充实人生之物.
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