纪录片《我们的地球》 第22期 从南极到北极(22)（在线收听）

The elephants are nearing the end of their long journey.

象群正接近漫长旅途的终点

After weeks of marching they're desperately tired.

经过数周的长途跋涉，它们都已是精疲力尽

The matriarch can smell water and encourages the herd to make one last effort.

母象首领闻到了水的气味，它鼓励象群再做最后的努力

The youngsters are exhausted, but their mothers have made this journey before

小象疲惫不堪，不过它们的母亲以前也经历过这种旅行

and they know that they're close to water.

它们很清楚水就在不远的前方

After many hundreds of miles they've arrived.

在完成数百英里的行程之后，它们终于抵达了目的地

The lives of these elephants are dominated by the annual rhythm of wet and dry,

这些大象的生活决定于一年一度的干湿季节交替

a seasonal cycle created by the sun.

这是太阳造成的季节循环。