极地涡旋是冬季风形成的一个风系。
有段时期温度过高，融化了极地的部分冰层。
There was a period of excessive warmth which melted some of the polar ice.
随着温度的上升，极地的冰会以更快的速度融化。
With the temperature rising, polar ice will melt at a faster rate.
周三，一股极地风给中西部地区带来了刺骨的严寒。
On Wednesday, a polar wind brought bitter cold to the Midwest.
在温带和极地地区适应季节的规律变化可能是相对简单的。
Adaptations to the regular change of seasons in the temperate and polar regions may be relatively simple.
其次，极地的大气层很薄，所以加热它所需要的能量很少。
Second, the polar atmosphere is thin, so little energy is required to warm it.
当雪落在高山或极地地区时，它可能成为冰川系统的一部分。
When snowfalls on high mountains or in polar regions, it may become part of the glacial system.
冰川有时按温度分为流动较快的温和冰川或流动较慢的极地冰川。
Glaciers are sometimes classified by temperature as faster-flowing temperate glaciers or as slower-flowing polar glaciers.
从极地盖帽到赤道森林，这是不可逆转的世界，这就是我们拥有的所有自然。
It is this irreversibly modified world, from the polar caps to the equatorial forests, that is all the nature we have.
长期以来，科学家们一直怀疑有几个因素导致了地球极地地区比其他地区更大的温度波动。
Scientists have long suspected that several factors lead to greater temperature swings at Earths polar regions than elsewhere.
长期以来，科学家们一直怀疑，有几个因素导致了地球极地地区比其他地区更大的温度波动。
Scientists have long suspected that several factors lead to greater temperature swings at Earth's polar regions than elsewhere.
从孩提时代起，Shirase 就梦想成为像阿蒙森一样的极地探险家，而他最初的目标是去北极。
Since boyhood, Shirase had dreamed of becoming a polar explorer like Amundsen, and he initially set his sights on the North Pole.
他们从未被积极地鼓励去冒这样的风险。
They have never been actively encouraged to take such risks.
他们有可能积极地回应该总统的援助请求。
They are likely to respond positively to the president's request for aid.
他认真积极地学习。
大主教亨特豪森也阐述了他的想法：妇女和同性恋者应更积极地参与教堂事务。
Archbishop Hunthausen also vocalized his beliefs that women and homosexuals should be more active in the church.
它能帮助员工积极地看待事物。
它帮助你积极地发展你的分析能力。
学生们积极地讨论和表达他们的观点。
The students discussed and expressed their opinions actively.
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