该系统的研制成功为城市河湖的污染治理开辟了新途径。
The successful development of the system has broken a new path for the pollution control of rivers and lakes in urban areas.
几天以后，我又发现一个新的海鲜推广计划，主角是一种产自上海附近淡水河湖的美味：大闸蟹。
A few days later I discovered yet another new seafood gift marketing scheme involving those seasonal freshwater delicacies from lakes and rivers near Shanghai: hairy crabs.
夏天，鳟鱼从 Koocanusa 湖逆流而上50英里，到不列颠哥伦比亚威格沃姆河的排水系统产卵。
In the summer, bull trout forge 50 miles upstream from Lake Koocanusa to spawn in the Wigwam River drainage in British Columbia.
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