undammingBNC²³⁶²¹³⁺¹ 基本例句 使如决堤般流出 Undamming the Elwha River is expected to boost its salmon population from3,000 to400,000, which will attract bears, eagles and other wildlife that thrived before the river was dammed in1914. 拆除瓦尔河上的大坝目的是希望能够将大马哈鱼的种群数量从3000尾增加到40万尾，这样就可以吸引棕熊、老鹰和其它野生动物，使其恢复到1914年大坝建立之前的水平。 ecocn