Polars
(polar 的复数) a. 两极的, 极地的, 正好相反的, 极性的\\nn. 极线, 极面
🗣️ 情景例句
Haven't I seen you before?
我以前没见过你吗？
Knowledge advances by steps and not by leaps.
知识只能循序渐进，不能跃进。
Suddenly the door of the storeroom was opened and a man entered.
突然贮藏门开了，一个男人走了进来。