BBC听力 | 从南极到北极 15
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The winds generated out at sea, sweep inland across the continents.
风在外海形成，侵入大陆席卷内陆地区
As they travel across the Sahara, they create the biggest of all sand storms
它们穿越撒哈拉沙漠时，造成了世界上最大的沙尘暴
blowing sand halfway round the world to fertilize the Amazon jungle.
沙子被吹到地球的另一头，亚马逊丛林因此而变得肥沃
Winds blowing across the Indian Ocean
风掠过整个印度洋
collect moisture and sweep northwards towards the Himalayas.
一边收集水气，一边扑向北方的喜玛拉雅山脉
As the air rises, so it cools.
随着气流的上升，温度也逐渐下降
The water it carries condenses into clouds
携带的水气开始凝结，汇集成云
and then falls as the life giving rains of the monsoon.
然后变成季风雨落到地面，滋润大地万物
So air currents powered by the sun, carry wet air to the middle of continents.
至此，由太阳驱动的大气环流，将潮湿空气带到了大陆中部。
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