This is the time of year when blasts of Arctic air start sweeping across Mongolia's steppe, ushering in the long, hard winter.

每年这时，北冰洋的刺骨寒风开始席卷蒙古大草原，迎接着漫长而寒冷的冬季。

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This is not only in the good "air bath", also accepted the hardy training, the body gradually adapt to the cold stimulation, for the upcoming winter ready.

这不但是在进行好的“空气浴”，还接受了耐寒训练，使身体逐渐适应寒冷的刺激，为即将到来的寒冬做好充分的准备。

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Air pollution is expected to worsen this winter because of a chronic natural gas shortage.

因为长期的天然气资源短缺，今年冬天天气污染预计会进一步恶化。

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This tracks the difference in air pressure between Iceland and the Azores and, during the winter months, determines the strength of the winds, temperatures and rainfall in the St Kilda archipelago.

ECONOMIST: Evolution and climate change

No doubt some of this hot air originates in Congress, explaining all those harsh northeastern U.S. blizzard conditions last winter.

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