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。
A big stone has fallen from the mountain and blocked the road.
一个大石头从山上掉下来阻塞了道路。
Down-down: Every time, when we pass here, we will be blocked by this big stone.
当当：但是每次经过这儿都会被这一颗大石头挡住。
A huge block of stone blocked the highway yesterday.
昨天一块巨石阻塞了公路。
The escapement wheel is blocked in turns by each pallet-stone and freed at each oscillation of the regulator through the fork and balance. Concurrently the pallets keep the oscillator running.
擒纵轮不断地被擒纵叉阻止和释放，与钟摆的周期相一致地运转。
When the stone man moved aft, Duck blocked his way, pole in hand.
当石人想船尾逃去时，鸭子用篙封住了他的去路。
When a tadpole came into the circle, I blocked the entrance with a stone. Secondly, I kept looking for the tadpole in the water.
当一只小蝌蚪游进来时，我就用石块堵住入口，然后不停地用双手在水里摸索着。
Ji and the seven girls saw that villages were blocked by the Hanbi Pool and could not go to the other side for farming, so they decided to build a stone bridge over the pool together.
阿吉和七位姑娘看见乡亲们为涵碧潭所阻，不能到对岸去赶场和耕种，便决心在涵碧潭上合力修建一座石桥。
Ji and the seven girls saw that villages were blocked by the Hanbi Pool and could not go to the other side for farming, so they decided to build a stone bridge over the pool together.
阿吉和七位姑娘看见乡亲们为涵碧潭所阻，不能到对岸去赶场和耕种，便决心在涵碧潭上合力修建一座石桥。
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