A polar bear is a kind of animal.
北极熊是一种动物。
A molecule where the centers do not coincide is called a polar molecule.
正负电荷中心不重合的分子称为极性分子。
As they drift away from the polar region, icebergs sometimes move mysteriously in a direction opposite to the wind, pulled by subsurface currents.
当漂离极地地区时，冰山有时会在底层洋流的推动下颇为神秘地逆风移动。
The two systems of government are polar opposites.
这两种政体截然相反。
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发布人：webw3c 发布时间：2011-05-08 21:25:41
联想方式:pol-破烂+ar-矮人记忆方法:破烂的矮人生活在极地
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