- Now the shearwaters can dive down on them, descending to twenty meters or more
猛鹱出动了 它们可以潜至20米甚至更深来捉鱼 - and the dolphins block the baitball's retreat.
海豚们锁定了从海面撤退的鱼群 - The dolphins leave as soon as they've had their fill
海豚吃饱后迅速离开了 - and, at last, the mackerel sink below the diving range of the birds.
最后,竹荚鲭也逃出了猛鹱的攻击范围. - As the Sun disappears, a profound change takes place in the ocean.
昼去夜至,海洋发生了另一个重大变化 - Deep water plankton start to rise from the depths and another hungry army prepares to receive it.
深海的浮游生物开始浮上水面, 另一支饥饿的部队准备接受这些猎物 - Every night, wherever conditions are right, countless millions of creatures from the deep migrate to the surface, seeking food.
如果环境适宜, 每天晚上会有无数的深海生物到海面来觅食
and, at last, the mackerel sink below the diving range of the birds. 最后,竹荚鲭也逃出了猛鹱的攻击范围.
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