polar /ˈpəulə/ adj. 1.极地的：polar bear 北极熊；the polar circles (南或北)极圈 2. 正好相反的，截然对立的：polar opposites 截然相反的对立面
pole /pəul/ n.［c］1.杆，柱(尤指用于支撑帐篷、电线或张悬旗帜等)：There is a flag at the top of the pole. 杆子顶端有一面旗。Here are many poles for telegraph wires.这有许多电话线杆。 2.极；磁极，电极：the North (South) Pole 北(南)极；pole strength 磁极强度；the positive (negative) pole 正(负)极 3. 用于习语poles apart完全相反：My sister and I are poles apart in personality.我姐姐和我性格上完全相反。
