adj. 形容词北极的，寒带的；极寒的；（态度）冰冷的
n. 名词北极圈，北极地带；（常复数）<美>御寒防水套鞋
The explorers ventured into the arctic wilderness last month.
探险者们上个月进入了北极荒野。
Climate change is rapidly affecting the arctic environment.
气候变化正在迅速影响北极环境。
Polar bears are native to the arctic regions of the world.
北极熊原产于世界的北极地区。
Scientists are studying the arctic ice caps for climate data.
科学家们正在研究北极冰盖以获取气候数据。
The arctic fox is well adapted to cold climates.
北极狐非常适应寒冷的气候。
Many species in the arctic are threatened by global warming.
许多北极物种受到全球变暖的威胁。
The arctic night can last for several months.
北极的夜晚可能持续数月。
The arctic circle is located at approximately 66.5 degrees north.
北极圈大约位于北纬66.5度。
In the arctic, temperatures can drop below minus 40 degrees.
在北极，气温可以降到零下40度以下。
Researchers explore the arctic to understand its unique ecosystem.
研究人员探索北极以了解其独特的生态系统。
arctic fox 北极狐
arctic tundra 北极苔原
arctic climate 北极气候
arctic region 北极地区
arctic expedition 北极探险
arctic ice sheet 北极冰原
