and they know that they're close to water. 它们很清楚水就在不远的前方

324. and encourages the herd to make one last effort.
     它鼓励象群再做最后的努力
325. The youngsters are exhausted
     小象疲惫不堪
326. but their mothers have made this journey before
     不过它们的母亲以前也经历过这种旅行
327. and they know that they're close to water.
     它们很清楚水就在不远的前方
328. 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
329. 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
330. a seasonal cycle created by the sun.
     这是太阳造成的季节循环

来自《行星地球 第一季 第一集 Planet Earth S01E01 从北极到南极》第 327 行