But the biggest culprit was the Edwards Dam — a small stone-and-timber structure built in 1837 for hydropower generation that blocked the fish from reaching their spawning grounds.
但是最大的原因是在1837年由小石头和木材构建的爱德华兹水坝,它被用来水力发电,水坝阻拦了鱼群到达它们的产卵地。
But the biggest culprit was the Edwards Dam — a small stone-and-timber structure built in 1837 for hydropower generation that blocked the fish from reaching their spawning grounds.
但是最大的原因是在1837年由小石头和木材构建的爱德华兹水坝,它被用来水力发电,水坝阻拦了鱼群到达它们的产卵地。
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