The acid waste waters are discharged into a sump or the sewerage system.酸性废水被送往销毁池或阴沟系统....without access to any services such as water or sewerage.不能享受任何诸如供水或污水处理之类的服务The town has already put in a proper sewerage system...
Top supermarkets are to ban many genetically modified foods.大品牌超市即将下架许多转基因食品。We are all genetically programmed to develop certain illnesses.基因决定了我们都会患上某些疾病。All the bees in the colony are genetically related.同一群体的蜜蜂都有亲缘关系...