polar

The polar vortex is a system of wintertime winds. 極地渦旋是冬季風形成的一個風系。

There was a period of excessive warmth which melted some of the polar ice. 有段時期温度過高，融化了極地的部分冰層。

Polar bears live in the Arctic. 北極熊生活在北極。

It's located in the moon's South Polar Region. 它位於月球的南極區域。

On Wednesday, a polar wind brought bitter cold to the Midwest. 週三，一股極地風給中西部地區帶來了刺骨的嚴寒。

I'm back in Finland with the snow, reindeers, and polar bears. 我回到了芬蘭，那裏有雪、馴鹿和北極熊。

If you live near the Arctic Circle, hug the closest polar bear. 如果你生活在北極圈附近，請擁抱離你最近的北極熊。

With the temperature rising, polar ice will melt at a faster rate. 隨着温度的上升，極地的冰會以更快的速度融化。

This is the result of the four polar bonds clustering symmetrically in space. 這是四個極性鍵按空間對稱聚集的結果。

Biologists calculate that there are about 20,000-25,000 polar bears worldwide. 生物學家估計，全世界大概有2萬至2萬5千隻北極熊。

Second, the polar atmosphere is thin, so little energy is required to warm it. 其次，極地的大氣層很薄，所以加熱它所需要的能量很少。

Wildlife like polar bears and walruses that depend on sea ice to live is also in danger. 像北極熊和海象這樣依靠海冰生存的野生動物也處於危險之中。

Global warming has posed a serious threat to the survival of animals such as polar bears. 全球變暖對北極熊等動物的生存造成了嚴重威脅。

When snowfalls on high mountains or in polar regions, it may become part of the glacial system. 當雪落在高山或極地地區時，它可能成為冰川系統的一部分。

Like brown bears and polar bears, sloth bears may have evolved in an environment with few trees. 和棕熊和北極熊一樣，樹懶熊可能是在樹木稀少的環境中進化而來的。

The Canadian Arctic is a vast, treeless polar desert that's covered with snow for most of the year. 加拿大的北極是一個廣闊的、沒有樹木的極地沙漠，一年中大部分時間都被雪覆蓋着。

Although polar bears' locomotion is similarly inefficient, polar bear cubs walk along with their mother. 儘管北極熊的運動能力同樣低下，北極熊幼崽還是和媽媽一起前行。

The polar bear is the largest terrestrial carnivore, being more than twice as big as the Siberian Tiger! 北極熊是陸地上最大的肉食性動物，比西伯利亞虎都要大兩倍多！

Adaptations to the regular change of seasons in the temperate and polar regions may be relatively simple. 在温帶和極地地區適應季節的規律變化可能是相對簡單的。

There're lots of animals in the North Pole, for example, whale, polar bear, and sea dog, and I like polar bear best. 在北極有很多動物，比如鯨魚、北極熊、海狗等，而我最喜歡北極熊。

Glaciers are sometimes classified by temperature as faster-flowing temperate glaciers or as slower-flowing polar glaciers. 冰川有時按温度分為流動較快的温和冰川或流動較慢的極地冰川。

Scientists have long suspected that several factors lead to greater temperature swings at Earths polar regions than elsewhere. 長期以來，科學家們一直懷疑有幾個因素導致了地球極地地區比其他地區更大的温度波動。

The nomads' lifestyle was the polar opposite of collectivization. 遊牧民的生活方式同集體化的生活方式剛好相反。

Polar bears need the ice. 北極熊需要冰。

Polar bears are in great danger. 北極熊處於極度危險之中。

Polar bears like hunting for seals to eat. 北極熊喜歡捕食海豹。

They have pushed down the number of polar bears and seals while polar bears depend on sea ice for hunting seals. 它們導致了北極熊和海豹數量的減少，而北極熊依靠海冰捕食海豹。

Polar bears catch seals to eat on the ice. 北極熊在冰上捉海豹吃。

The Arctic is the home to about 25,000 polar bears. 北極是約兩萬五千只北極熊的家園。

Let's take action to protect our earth and save polar bears. 讓我們採取行動來保護我們的地球，拯救北極熊。 ^[1]