关于topsoil的百科

• topsoil造句怎么写

• Topsoilisapreciousresource,andwedon’thaveenoughtopsoiltoreplaceit.Withouttrees,Haitilostitstopsoilthrougherosion,cripplingagriculture.Irregularrainfallandlossoftopsoilmeansthatthelandproduceslessthanbefore.Whenitrainshard,landslidessweeptopsoildownt...
• 2017-03-3123111