Once the humus layer disappears, nutrients cannot be recycled and leach from the soil, converting soil from fertile to infertile and making it suitable only for savanna vegetation.
一旦腐殖质层消失，养分就无法从土壤中回收和过滤，致使土壤由肥沃变为贫瘠，只适于热带草原植被的生长。
2
Mr. Leach is on holiday and was not available for comment.
利奇先生在休假，没空作评论。
《柯林斯英汉双解大词典》
3
The teacher replied, "My dear sister, I tried my best to leach him, but your son did not want to lean the tricks and strategies of survival."