mulch

n.

护根（用以保持水分、消灭杂草等的覆盖物，如稻草、腐叶或塑料膜）；

vt.

用护根覆盖（植物根部或其周围地面）；

过去式：mulched过去分词：mulched现在分词：mulching第三人称单数：mulches

1. Black plastic mulch can help keep them warm.
   用黑塑料护根能帮助它们保持温暖。
2. Organic mulch improves the condition of soil.
   有机农地膜可以改善土壤环境。
3. Too much mulch can restrict oxygen and water flow.
   过多的护根则有碍于氧气和水流通。

1. If you mulch it, it will reduce the evaporation of water.
   如果你铺上护盖就可以减少水份的蒸发。
2. The kids seem to always disappear when it's time to plant, mulch, or weed.
   当种植、护根、除草时孩子们总是消失。

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