..he's lost almost all his energy. 雄鸵鸟已经精疲力竭

25. He protects the chicks that have emerged...
    雄鸵鸟用身体挡住太阳
26. ..shading them with his own body.
    保护刚出生的雏鸟
27. At the end of another gruelling day in the sun...
    经受太阳一整天的炙烤后
28. ..he's lost almost all his energy.
    雄鸵鸟已经精疲力竭
29. But he must resist the urge to rest.
    但它必须克制住想要休息的冲动
30. The cool of the night brings some relief...
    凉爽的夜晚能缓解些许疲劳
31. ..but now predators are out and about.
    但同时捕食者也开始了活动

来自《行星地球 第三季 第三集 Planet Earth S03E03 沙漠与草原》第 28 行