As the ice sheet grows and thickens it chills the nearby air.
随着冰盖越来越大，越来越厚，周围的空气也冷了起来。
2.sea levels 海平面
Lowered sea levels exposed the shallow continental shelf beneath the Bering Sea
海平面下降使白令海底部的浅层大陆架暴露出来。
3.in turn 反而
That, in turn would increase pressure for higher wages and that, in turn, would impact on inflation and competition.
那样就会增加工资上涨的压力，而那样又会对通货膨胀和竞争产生影响。
4.contribute to 贡献
Heat, cold, tactile and other sensations contribute to flavour.
热、冷、触觉和其他感觉构成了食物风味的一部分。
5.on record 史上
It's the shortest election campaign on record
这是史上为期最短的一次竞选活动。
