衬边

例句：

1. 1. The book is on the table edge.
   书放在桌子边上。
2. 2. The car's wheels are at the edge of the road.
   汽车的轮子在路的边缘。
3. 3. The artist painted a picture with a bold edge.
   艺术家画了一幅有强烈边缘的画。