polar

形容词 polar:

1. having a pair of equal and opposite charges
2. characterized by opposite extremes; completely opposed
   同义词：diametric, diametrical, opposite
3. located at or near or coming from the earth's poles
4. of or existing at or near a geographical pole or within the Arctic or Antarctic Circles
5. extremely cold
   同义词：arctic, frigid, gelid, glacial, icy
6. being of crucial importance
   同义词：pivotal

1. Although they can swim, the polar bears are terrestrial animals.
   北极熊虽然会游泳，但也是陆栖动物。
2. The polar bear's habitat is the icy waters of the Arctic.
   北极熊的栖息地是冰冷的北极海域。
3. Located or found in one of the Polar Regions.
   环极的，围绕极地的位于或发现于一个极地区域中的
4. Are there any animals in the polar circles?
   南极圈和北极圈内有动物存在吗？
5. Polar distance; polar diameter.
   极距; 两极的直径
6. The two systems of government are polar opposites.
   这两种政体正好相反。

po.lar

adj.（形容词）

Of or relating to a pole.
极地的：极地的，有关极地的
Measured from or referred to a pole:
从极地测量的，参照极地的：
例句：
polar distance; polar diameter.
极距；两极的直径

Relating to, connected with, or located near the North Pole or South Pole.
近极地的：关于北极或南极的，与极地相连的，或位于北极或南极附近的

Passing over a planet`s north and south poles:
越过极地的：经过一个行星的南极和北极上空的：
例句：
a polar orbit.
越过极地的轨道

Traveling in an orbit that passes over a planet`s north and south poles.
行经极地的：在一条经过一行星南北极上空的轨道中运行的
Serving as a guide, as a polestar or a pole of the earth.
指示的；引导的：用作导向的，如一颗北极星或地球的一极
Occupying or characterized by opposite extremes:
对立的，相反的：占据着两个相反极端的，或以占据相反极端为特征的：
例句：
.In creative territory[they] make a strange yet ineluctable couple, more complementary, even polar, than twin-like. (Josh Rubins)
.在创造领域[他们] 构成了奇异的却又不可避免的一对，与其说是象双胞胎，不如说是互补的，甚至是截然对立的. (约什·鲁宾斯)

Central or pivotal.
中枢的，中心的
Chemistry Having to do with or characterized by a dipole:
【化学】 偶极的：与偶极有关的或具有偶极特征的：
例句：
a polar molecule.
偶极的分子