To enrich something means to improve its quality, usually by adding something to it. 充实; 丰富
verb [vt. 及物动词] 使充实，使丰富；使富裕，使富有；使（土壤）肥沃；浓缩（核燃料中的原子）
It is important to enrich the soil prior to planting. 栽种之前给土壤施肥很重要。
It is important to enrich the soil prior to planting. 栽种之前给土壤施肥很重要。
