纪录片《我们的地球》 第14期 从南极到北极(14)

If surprise fails, there will be a chase.

一旦突袭失败，鲨鱼就会展开追击

The shark is faster on a straight course

鲨鱼的直线速度更快

but it can't turn as sharply as the seal, its agility¹ versus² power

但是转向却不如海豹灵活，这是敏捷与力量的对抗

Once the seals have finished breeding, the giant sharks will move on.

等到海豹结束繁殖，大白鲨便会继续前进

It's now becoming clear that great whites migrate thousands of miles across the oceans

可以肯定的是，大白鲨长途跋涉数千英里横越大洋

to harvest seasonal³ abundances in different seas.

就是为了在不同海域享用这种季节性的盛宴。

The sun, beating down on tropical waters, powers the weather systems of the globe.

太阳烘晒着热带地区的海水，驱动了全球天气系统

Moisture evaporates from the warming ocean and rises to create great storms.

海水受热蒸发成水蒸气，上升并形成巨大的风暴。

1 agility   

n.敏捷，活泼

参考例句：

• The boy came upstairs with agility.那男孩敏捷地走上楼来。
• His intellect and mental agility have never been in doubt.他的才智和机敏从未受到怀疑。

2 versus   

prep.以…为对手，对；与…相比之下

参考例句：

• The big match tonight is England versus Spain.今晚的大赛是英格兰对西班牙。
• The most exciting game was Harvard versus Yale.最富紧张刺激的球赛是哈佛队对耶鲁队。

3 seasonal   

adj.季节的，季节性的

参考例句：

• The town relies on the seasonal tourist industry for jobs.这个城镇依靠季节性旅游业提供就业机会。
• The hors d'oeuvre is seasonal vegetables.餐前小吃是应时蔬菜。