compost

1. N-UNCOUNT Compost is a mixture of decayed plants and vegetable waste which is added to the soil to help plants grow. 堆肥

...a small compost heap. …一小堆肥堆。

2. N-MASS Compost is specially treated soil that you buy and use to grow seeds and plants in pots. (用于在盆中種種子和植物的) 特制土

...a 75-pound bag of compost. …一袋75磅重的栽種用土。

3. V-T To compost things such as unwanted bits of plants means to make them into compost. 把…制成堆肥