The polar vortex is a system of wintertime winds.
极地涡旋是冬季风形成的一个风系。
There was a period of excessive warmth which melted some of the polar ice.
有段时期温度过高，融化了极地的部分冰层。
In ''On Thin Ice'', Richard Ellis, a writer and illustrator, paints a natural history of the icon of the north, the polar bear.
在《薄冰之上》一书中，作家兼插画家理查·埃利斯描绘了北极图标，北极熊的自然史。
It ranges from sea level in the Polar Regions to 4,500 meters in the dry subtropics and 3,500-4,500 meters in the moist tropics.
它的范围包括海平面的极地地区、4500米高的干燥的亚热带地区以及3500-4500米高的潮湿的热带地区。
Normally planes don't go to the polar post from February to October because of the dangers of flying in the pitch-dark and cold.
通常情况下，飞机不会在2月到次年10月之间经行极地，因为在漆黑、寒冷的天气下飞行是很危险的。
The nomads' lifestyle was the polar opposite of collectivization.
游牧民的生活方式同集体化的生活方式刚好相反。
When ice is on the ocean, the polar bears are on the hunt.
海面上有冰时，北极熊就在狩猎。
There is not as much time for the polar bears to hunt for food.
北极熊没有那么多的时间猎食。
The parents' position is often the polar opposite of the child's.
父母的立场往往与孩子相反。
Second, the polar atmosphere is thin, so little energy is required to warm it.
其次，极地的大气层很薄，所以加热它所需要的能量很少。
The polar bear is the largest terrestrial carnivore, being more than twice as big as the Siberian Tiger!
北极熊是陆地上最大的肉食性动物，比西伯利亚虎都要大两倍多！
It is this irreversibly modified world, from the polar caps to the equatorial forests, that is all the nature we have.
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。
The leases come with painstaking stipulations to mitigate any possible environmental harm to species like the polar bear.
这些租约附带了细致的条款，以减轻对北极熊等物种的任何可能的环境伤害。
Before we all turn our thermostats down or consider joining the Polar Bear Club, can brown fat actually cause weight loss?
在我们把所有恒温关掉或考虑加入北极熊俱乐部之前，棕色脂肪真的能让体重减轻吗？
Satellite observations and submarine surveys over the past few years had shown less ice in the polar region, but the recent measurements show the loss is more pronounced than previously thought.
过去几年的卫星观测和潜艇调查显示，极地地区的冰层减少了，但最近的测量显示，冰层的减少量比之前设想的更为明显。
Eventually, Agassiz and others convinced geologists and the general public that a great continental glaciation had extended the polar ice caps far into regions that now enjoy temperate climates.
最后，阿加西和其他人说服了地质学家和普通大众，一个巨大的大陆冰川作用已经把极地冰帽延伸到了现在享受温带气候的地区。
On the contrary, they are not developed on the endocast of the polar bear.
相反，它们不是在北极熊的颅腔上发育的。
Q: What is the polar shift theory?
问：极地转移理论是什么？
北极熊可不干这些事。
My view is the polar opposite of Obama's.
我的看法与奥巴马正相反。
The new technique checks the chromosomes in the polar body.
这项新技术用于检查极体中的染色体是否异常。
A lot of the polar bears showed up here after a big storm.
很多北极熊在一场大风暴后出现在这里。
It is at times like these that I begin to envy the polar bear.
有时候我觉得我有点嫉妒北极熊了。
If things don't change the polar bears might be extinct in 50 years.
如果事情再不改变，50年内北极熊可能会灭绝。
Up to now, the polar bear has been the poster child for climate change.
到现在，北极熊一直是针对气候变化问题宣传画的宠物。
The app store business is the polar opposite of the telco content business.
应用商店是电信内容业务的相反极点。
The children and the polar bear are face to face in the same swimming pool!
孩子们竟能和北极熊在同一个泳池里面对面！
Somewhere between 20 to 90 people are attacked each year by the polar bear.
一些地方，每年有20 - 90人被北极熊攻击。
Somewhere between 20 to 90 people are attacked each year by the polar bear.
一些地方，每年有20 - 90人被北极熊攻击。
应用推荐