Pertaining to, or situated near, either end of the axis of the earth.

极地的；近极地的。

Pertaining to either of the opposite points of greatest force in a magnet.

磁极的。

Passing repeatedly over the earth's or another planet's north and south poles.

环绕两极飞行的。

Exactly opposite, as in action or character.

(行动或个性上)完全相反的。

Acting or serving as a guide.

指引的；指导的。