淡水污染
freshwater───n.淡水；内河；湖水；n.(Freshwater)（美）弗雷什沃特（人名）；adj.淡水的；淡水中生长的；位于偏僻地方的，地方性的
pollution───n.污染；污染物
pollution facts───污染事实
freshwater stone───淡水石
pollution essays───污染论文
freshwater sharks───淡水鲨鱼
sediment pollution───沉积物污染
thermal pollution───热污染
freshwater pearls───淡水珍珠；淡水育珠蚌类
Other freshwater and terrestrial ecosystems have been degraded by pollution.───其他淡水和陆地生态系统也因污染而退化。
This suggests that the quality of life of those relying on the river as a freshwater source could be improved considerably by addressing the individual pollution problems.───这也说明依靠河流作为淡水资源来源的人们其生活质量可通过解决个别污染问题而得到提高。
Poor sanitation also contributes significantly to water pollution—adding to the cost of safe freshwater for households, and reducing the production of fish in rivers and lakes.───较差的卫生条件也大大加重了水污染， 从而增加了家庭的安全饮用水费用，降低了河湖渔业产量。