| 单词 | sewage pollution |
| 释义 | sewage pollution Oil and sewage pollution also threaten this duck. Retrieved from Wikipedia CC BY-SA 3.0 This, along with run-off from nearby cattle stocks and sewage pollution, has caused eutrophication of the river waters. Retrieved from Wikipedia CC BY-SA 3.0 All of these suffer from problems of degradation resulting from sewage pollution, deforestation and uncontrolled urban expansion in watershed areas. Retrieved from Wikipedia CC BY-SA 3.0 |
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