mulch
noun [ C or U ] uk/mʌltʃ/ us/mʌltʃ/
（为保持水分、肥沃土壤等用的）覆盖料（或物），覆盖层
a covering of decaying leaves that is spread over the soil in order to keep water in it or to improve it
mulch
verb [ I or T ] uk/mʌltʃ/ us/mʌltʃ/
加覆盖层
to put mulch on or around something
[ + adv/prep ] Mulch around the base of the roses. 在玫瑰根部周围加覆盖层。
Mulch the roses. 给玫瑰根部加覆盖层。