Polio has been virtually eradicated in Brazil.在巴西脊髓灰质炎实际上已经根除。The disease has been eradicated from the world.这种疾病已在全世界得到根除.If tedious tasks could be eradicated, the world would be a much better place.如果可以消灭那些单调乏味的工作，世界将会...
organic detritus from fish and plants鱼和植物的有机残渣Detritus usually consists of gravel, sand and clay.岩屑通常是由砂砾, 沙和粘土组成的.The profile is established in response to the amount and type of detritus available.剖面的建立有赖于碎屑物补给的数量和类型....