Cold water may be upwelled or may be advected into the winter hemisphere.
冷水可以涌开或者可以平流到冬半球。
In the Southern hemisphere winter has begun, and it is summer north of the equator.
在南半球，冬天已经开始，赤道以北是夏天。
We are close to a knowledge of annual summer and winter temperature variations over much of the northern hemisphere going back 600 years.
我们很快就会知道，600年前北半球大部分地区每年夏季和冬季的温度是如何变化的。
The Winter Hexagon involves some of the brightest stars visible, forming a large and easily found pattern in the winter sky of Earth's northern hemisphere.
冬季六边形包括一些可见的最亮的恒星，它们在地球北半球的冬季天空中形成了一个大而容易辨认的图案。
We need to watch the behaviour of H1N1 very carefully as it encounters other influenza viruses circulating during the winter season in the Southern Hemisphere.
我们需要非常认真地观察H1N1的行为，看它在遭遇南半球冬季传播的其它流感病毒时将会如何。
Winter solstice is the shortest day of the year in the Northern Hemisphere and marks the official beginning of winter.
冬至在北半球是一年里最短的一天，同时也标志着冬天正式开始。
The delay had one upside for vaccine makers: Companies are only now completing production of the seasonal flu vaccine for next winter in the Northern Hemisphere.
推迟宣布对疫苗制造商有一个好处：北半球的制造商到现在才生产完今冬所需要的季候性流感疫苗。
Hence, even when flu subsides at the end of the northern hemisphere's winter, the disease merely shifts to the southern hemisphere (which is now entering its winter).
因而，就算流感在北半球冬季结束时得以减弱，它也不过只是转移到了南半球(那里正进入冬季)。
A link between summer sea ice in the Arctic and winter temperatures in the northern hemisphere was first proposed in 1914.
北极区夏季的海上浮冰和北半球冬天的气温之间的联系最早在1914年被提出。
Most skywatchers think of Scorpius as a summer constellation (in the Northern Hemisphere), but early risers get a preview of the Scorpion climbing the southeastern sky before dawn during winter.
大多数的天文爱好者会认为天蝎座是夏季的星座（对于北半球来说），但是如果你在冬季黎明前早起的话，在东南方天空仍然可以看到它。
Particular emphasis was placed on the epidemiological situation in the southern hemisphere, where many countries are experiencing their winter influenza season.
南半球许多国家正处于冬季流感季节，因而将重点特别放在了南半球的流行病学现状方面。
While the Northern Hemisphere is still in the grip of winter, crops are growing in the Southern Hemisphere, as indicated by the many green fields.
当北半球还处在严冬时，南半球的农作物正蓬勃生长，正如这些绿色的农田显现的那样。
For this reason the northern hemisphere enjoys summer while the southern has winter; and vice versa, when we have mid-winter, people in the other hemisphere are in the midst of summer.
因此，当北半球正享受着夏季的时候，南半球则正在经历着严冬，反之亦然，当我们处在冬天的时候，南半球的人们正在过着夏天。
At the same time that the Northern Hemisphere is entering summer, the South Pole is tilted away from the sun, and the Southern Hemisphere is starting to feel the cold of winter.
与此同时，北半球进入夏季，南极倾斜远离太阳，南半球已开始感受到冬天的寒冷。
There was a major flu outbreak, and a Tamiflu-resistant strain of seasonal flu established itself and then spread to the Northern Hemisphere, including to the United States, last winter.
当时出现了严重的流感爆发，抗达菲药物的季节性流感乘机而入，疫情一直扩散到了北半球的冬天，包括美国在内的广大地区。
Of course, the December solstice marks the beginning of winter in the northern hemisphere and summer in the south.
当然，这意味着北半球冬季和南半球夏季的开始。
The number of cases of the flu, known as the H1N1 virus, has been climbing in Argentina and Chile in recent days as winter approaches in the Southern Hemisphere.
最近，由于南半球开始渐渐入冬，携带着H1N1病毒的猪流感病例在阿根廷和智利节节攀升。
During this winter season in the northern hemisphere, some countries continue to see cases of severe H1N1 disease in a comparatively young age group.
在今年北半球的冬季期间，有些国家继续在相对年轻的年龄组人群中出现严重的H1N1疾病病例。
In the southern hemisphere, the winter solistice coincided with the celebration of the Aymara New Year in Tiwanaku, Bolivia, on Monday.
在南半球，同样是在周一，此时正值冬至时分，玻利维亚蒂瓦纳库的艾马拉人正在庆祝新年。
Worries are focused on dry weather in the northern hemisphere, which is affecting next year's winter wheat crop - planted recently - in producers such as the us and Russia.
忧虑情绪的重点是，北半球的干旱气候会影响美国、俄罗斯等产粮大国明年的冬小麦收成——这些小麦最近刚刚播种下去。
As winter progresses in Earth's northern hemisphere, Orion will rise earlier and so appear continually higher in the sky at sunset.
随着冬天降临到地球的北半球，猎户座将会升起得更早，日落之时将会出现在天空中更高的位置。
As the pandemic gains ground during the winter seasons, first in the northern hemisphere, later in the south, this largely reassuring picture will be undercut by extremes.
当流行性疾病在冬季逐渐加强其势力，先是在北半球，而后在南半球，这种极令人稍许放松的画面被极端事件所取代。
In the southern hemisphere, where it is winter, swine flu apparently replaces the usual seasonal flu.
在南半球，那里处于冬季，猪流感显然取代了通常季节流感。
The outbreak in Ukraine may be indicative of how the virus can behave in the northern hemisphere during the winter season, particularly in health care settings typically found in Eastern Europe.
乌克兰疫情可能表明冬季期间该病毒在北半球，特别是在东欧那些典型的卫生保健机构中会有何种表现。
During the winter season in the southern hemisphere, several countries have viewed the need for intensive care as the greatest burden on health services.
在南半球冬季期间，若干国家认为重症监护的需求是对卫生服务的最大负担。
But experience from the southern hemisphere during their winter season shows that the virus can place a considerable strain on health services and can result in serious illness and death.
但南半球冬季的经验显示，此病毒可能会对卫生机构造成相当大压力，并可能导致重病和死亡。
But experience from the southern hemisphere during their winter season shows that the virus can place a considerable strain on health services and can result in serious illness and death.
但南半球冬季的经验显示，此病毒可能会对卫生机构造成相当大压力，并可能导致重病和死亡。
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