Of all the renewable energy sources, hydroelectricity is the oldest and most commonly.
在所有的可再生能源中,水電是最古老的,也是最普遍的。
Hydroelectricity uses the force of water flow to produce electricity, so power plants must be over a water source.
水電依靠水流動的力來發電,因此電站必須建在水源之上。
Developments in technology have allowed us to store and send electricity from water power so that it can be used by people not near the power source.
技術的發展允許我們存儲和輸送水電,因此不住在水電站附近的人們也可以使用它。
In many parts of the world, tentative steps are being taken to introduce these forms of alternative energy.
在世界的許多地方,人們正采取初步措施,來引入此類可再生能源。
For example, some people in Nigeria are training to use solar energy,
例如,尼日利亞的一些人接受訓練使用太陽能;
and in Costa Rica, people are now using hydroelectricity to provide power for their small villages.
在哥斯達黎加,人們正在用水電為他們的小村莊供電。
Many of these communities did not have any form of electricity or power before this.
許多社區在使用這些能源以前,沒有用過電。
The introduction of programmes like these will hopefully help end the systematic destruction of the environment and see alternative energy promoted around the world.
類似項目的引進將有希望幫助結束對環境的蓄意破壞,在全世界推廣可再生能源。
This will mean good things for our future, our children's future and our grandchildren's future.
這對我們及我們子孫的未來意味著好事。