Definitions

[1] adj. 两极的, 极地的, 正好相反的, 极性的

[2] n. 极线, 极面

[3] [医] 极的

[ 'pәulә ]

1. The aurora is a phenomenon characteristic of the polar regions.
   極光是極地特有的自然現象。
2. Melting polar icecaps could also contribute to an increase in sea levels.
   融化中的极地冰盖也可以使海平面上涨的势态更加严重。
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