polar region

基本解释

Blue fans decorate the pinkish landscape of Mars's south polar region in a false-color picture taken by NASA's Mars Reconnaissance Orbiter and released Wednesday.
蓝色的扇子点缀着略带桃色的火星南部极地地区，这张由美国宇航局火星侦察卫星拍摄的照片发布于星期三。
The researchers warn that the amount of the poisons in the polar region is unknown and their release could "undermine global efforts to reduce environmental and human exposure to them".
研究人员警告称，冻结在极地区域的毒素数量不明，而这些有毒物质的释放会对地球环境以及人类自身安全造成极大威胁。
During winter, carbon dioxide condenses out of the atmosphere and forms a frost of dry ice that coats the planet's polar region.
在冬季时，二氧化碳脱离大气冷凝成固体二氧化碳（干冰）覆盖在星球的极地地区。

Currently it is northern winter on Vesta, and the northern polar region is in perpetual darkness.
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