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来源：雅诚德英语网
In the summer, bull trout forge 50 miles upstream from Lake Koocanusa to spawn in the Wigwam River drainage in British Columbia.
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.
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。