Those that fly above the ocean must be able to read the signs of fresh supplies, or perish. 飞越海洋的鸟类必须懂得寻找食物的踪迹, 不然就意味着死亡
They must get to the sea as soon as possible 它们必须尽快爬向大海
To see what it does, you must switch off the lights. 想看它要做什么,就要关掉灯光
If we are to follow, we must use a submarine. 如果想要跟下去,必须乘潜水艇
Predators here must grab what they can, when they can 掠食者在这里想怎么吃就怎么吃
If they are relaxed, it must be safe to come down to the ground and gather the food that lies there 如果白斑鹿显得无拘无束 那么叶猴可以安心从地面上采集食物
and the trees must shut down and shed their leaves in preparation for the cold dark time ahead. 树木开始减缓代谢,树叶开始凋零, 以准备迎接寒冬的到来