mulching
柯林斯词典
1. N-MASS A mulch is a layer of something such as old leaves, small pieces of wood, or manure which you put on the soil around plants in order to protect them and help them to grow. 护根; 护根物(盖于植物周围土壤上助其生长的枯树叶、小树枝或粪肥)
2. V-T To mulch plants means to put a mulch around them to protect them and help them to grow. 用护根物覆盖
In May, mulch the bed with garden compost. 五月，在苗床上盖些肥料。
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