kedge

例句：

1. 1.The book is on the corner of the desk.
   这本书放在书桌的角落里。
2. 2. The car was parked at the edge of the road.
   汽车停在路的边缘。
3. 3. The mountain range forms a natural boundary between the two countries.
   山脉形成了两国之间的自然边界。