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Chinese dictionary
n.polar region
极地的冬季
polar winter
极地探险
polar exploration
极地气候
polar climate
极地航行
arctic navigation
进行极地科学研究
carry out scientific research in the polar region
极地的冬季
polar winter
极地探险
polar exploration
极地气候
polar climate
极地航行
arctic navigation
进行极地科学研究
carry out scientific research in the polar region