定义
the edge (of a cliff, of a knife): (悬崖的,小刀的)边缘
The car was parked at the edge of the road. 车停在道路的边缘。
an edge (over the competition): (竞争中的)上风,优势
His experience with Blinix operating systems gave him an edge over the other candidates. 拥有Blinix操作系统的经验使他比其他候选人更有优势。