Large dams have harmed Siberia's delicate ecological balance.
大坝损害了西伯利亚脆弱的生态平衡。
Beavers build dams and birds make nests.
海狸筑水坝，鸟筑巢。
Few creations of big technology capture the imagination like giant dams.
在大型技术的创造中，很少有能像大型水坝那样激发人们的想象力。
The new focus may be on removing existing dams and restoring natural habitats.
新的关注点可能是拆除现有的水坝，并恢复自然栖息地。
Your job, as captain of your soul, is to erect dams to keep these passions in check.
作为灵魂的船长，你的工作就是竖起堤坝来控制这些激情。
In fact, dams are primarily a strategy for dealing with annual variations in water levels.
事实上，水坝主要是应对水位年变化的一种策略。
Hydroelectric power and flood control and irrigation are possible without building monster dams.
水力发电、防洪和灌溉都不需要建造大型水坝。
These dams generate low-cost electricity and store water that is needed for agriculture and industry.
这些水坝能产生低成本的电力，并储存农业和工业所需的水。
How does one weigh the many different economic, cultural, and aesthetic considerations for removing or not removing these dams?
人们该如何考量众多不同的经济、文化和美学方面的因素，以决定是否拆除这些大坝？
Local economies, domestic water supplies, and certain types of recreation all would be severely impacted by destruction of these dams.
当地的经济、生活用水供应和某些类型的娱乐活动都将受到这些大坝破坏的严重影响。
Since the late 1990s, the government has stopped building large dams, instead focusing on removing existing dams and restoring natural habitats.
自上世纪90年代末以来，政府已经停止建造大型水坝，而是专注于拆除现有水坝，并恢复自然栖息地。
These dams blocked access to upstream spawning beds for six species of salmon on what once was one of the most productive salmon rivers in the world.
这些水坝阻断了6种鲑鱼的上游产卵地，而这条河曾是世界上鲑鱼产量最高的河流之一。
As towns gradually expanded, water was brought from increasingly remote sources, leading to sophisticated engineering efforts such as dams and aqueducts.
随着城镇的逐渐扩大，水资源要从越来越远的地方获得，这就需要建造如水坝和引水渠这样复杂的工程。
These beavers do know how to build dams, and do so if the need arises, as may occur if they are forced to relocate after felling and consuming all nearby trees.
这些海狸知道如何建造水坝，而且在有需要的时候就会这么做，比如当它们在砍伐和消耗了附近所有的树木后被迫迁移的时候。
Environmental groups now have a very good chance of forcing the removal of two major dams, the Glen Canyon Dam on the Colorado and the Hetch Hetchy Dam in Yosemite.
环保组织现在很可能会强制拆除掉两座重要大坝——科罗拉多的格伦峡谷大坝和约塞米蒂的赫奇赫奇大坝。
Building these dams provided cheap electricity, created jobs for workers, stimulated regional economic development, and allowed farming on lands that would otherwise be too dry.
修建这些水坝可提供廉价的电力，为工人创造就业机会，刺激了地区经济发展，并允许在否则将过于干燥的土地上进行耕种。
Until recently, the main reason for removing dams was to restore salmon runs, but it is now recognized that a more important reason to remove dams is that they are no longer safe.
直到近期，拆除大坝主要还是为了恢复鲑鱼的数量，但现在人们认识到，拆除大坝的一个更重要的原因是这些大坝已不再安全了。
Where previously it had concentrated on the big infrastructure projects such as dams, roads and bridges, it began to switch to projects which directly improved the basic services of a country.
以前的重心是大坝、道路和桥梁等大型基础设施项目，现在开始转向直接改善国家基础服务的项目。
Beavers build dams along the river.
河狸沿河筑坝。
The beavers' dams slow down the speed of the river, especially after heavy rain.
河狸筑的水坝减缓了河水的流速，尤其是在大雨之后。
Twelve new dams are planned for the upper Yangtze alone.
仅在长江上游，就规划再修建12座大坝。
The idea that dams can change weather patterns is not new.
大坝可以改变天气模式的提法并不新鲜。
The total price tag for those dams will exceed $1 billion.
这些水电站总金额超过10亿美元。
Turkish contractors are angling to build airports, housing and dams.
土耳其承包商们承建机场、住房和大坝。
With Oxfam's help, we are water harvesting, building dams and small reservoirs.
在乐施会的帮助下，我们正在蓄水，建造水坝和小型水库。
X.F.: There's no possibility to delay or stop building dams, even in high-risk areas.
范： 根本没有可能去延缓或叫停这些正在修建的水坝，即使在高风险的区域。
Its network of dams has boosted farm productivity and raised living standards across the region.
河坝水利网大大提高了该地区的农业产量，同时也改善了该地人民的生活水平。
Those are reasons why Brazilian firms want to build dams across the border in Peru (see article).
那些正是巴西企业想要在秘鲁兴建跨越边境之大坝（参见该文）的理由。
Those are reasons why Brazilian firms want to build dams across the border in Peru (see article).
那些正是巴西企业想要在秘鲁兴建跨越边境之大坝（参见该文）的理由。
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