| 词汇 | polar |
| 词根词缀 | 词源： 1550s, from M.L. polaris, from L. polus (see pole (2)). Meaning "directly opposite in character or tendency" is attested from 1832. Polar bear first recorded 1781. 词根记忆： a. 两极的,极地的,南辕北辙的n.极线,极面Love and hatred are polar feelings.爱与恨是完全相反的感情. |
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