polar 核心詞議：
adj. 極地的；兩極的；正好相反的
n. 極面；極線
polar 基本解釋
adj. 極地的，兩極的；正好相反的；[化，物]磁極的，有磁性的
n. [幾]極線，極面
速記方法
速記技巧
詞根詞綴法
-pol-極+-ar形容詞詞尾
知識擴展
重要短語
polar bear北極熊
polar coordinate極坐標；極座標；極坐標系統
polar region極地；近極區域
polar ice極地冰
中文詞源
polar 地級的，兩級的，截然對立的
來自pole,地級，兩級。引申詞義截然對立。
中文詞源：
polar 地級的，兩級的，截然對立的
來自pole,地級，兩級。引申詞義截然對立。
polar
精選例句
1、 The polar vortex is a system of wintertime winds.
極地渦旋是冬季風形成的一個風系。
2、 There was a period of excessive warmth which melted some of the polar ice.
有段時期溫度過高，融化了極地的部分冰層。
1、 J)There have been half-hearted but well-publicized efforts by some food companies to reduce calories in their processed foods, but the Standard American Diet is still the polar opposite of the healthy, mostly plant-based diet that just about every expert says we should be eating.
一些食品公司為減少加工食品中的卡路里含量做出了半心半意但廣為宣傳的努力，但標準美國飲食仍然與幾乎每個專家都說我們應該吃的以植物為主的健康飲食截然相反。
1、 Bearded Russian priests offer regular services at the Orthodox church for the 16 or so Russian speakers who spend the winter at the base, largely polar scientists in fields like glaciology and meteorology.
留著大胡子的俄羅斯牧師定期在東正教教堂為在基地過冬的大約16名講俄語的人提供服務，這些人主要是冰川學和氣象學等領域的極地科學家。
常見考點例句：
- The moon was once thought to be dry . Then came hints of ice in the polar craters .
- 月球曾被認為很干燥，而后又有跡象顯示在極地的月坑有冰。
- One concerned a 20-year-old hypothesis , supported by radar observations from earth , that suggested some polar craters might hide reserves of water-ice .
- 其中一個假說存在了20年的，這個假說認為一些極地的火山口處有刨冰存在，這個假說已通過地面雷達觀測證實了。
- The deposits in the lunar craters may be as informative about the moon as ice cores from earth 's polar regions are about the planet 's past climates .
- 在月坑里的沉積物可能含有與月球相關的豐富信息，就像地球極地的冰芯那樣，含有許多過去氣候的信息。
- Between now and early september , when the polar pack ice shrivels to its summer minimum , they will pore over the daily sea ice reports of america 's national snow and ice data centre .
- 從現在到九月初，極地的積冰逐漸縮減到夏季最小量，這都會在美國國家冰雪數據中心的海冰報告里得到關注。
- The result , according to a modeling study published earlier this month the journal of geophysical research , is a strong high-pressure system over the newly exposed sea which brings cold polar air , swirling counter-clockwise , into europe .
- 根據這個月初在《地球物理學雜志》上發表的一項模擬研究，這將在剛冰層融合的海面上形成一個高壓系統，正是這個剛形成的海面把極地的冷空氣，順時針漩渦方向帶到了歐洲。