边沿

例句：

1. 1. The car's edge is sharp and it cuts through the air with ease.
   这辆车的边缘锋利，轻松地切割空气。
2. 2. The river has a wide edge that separates it from the land.
   这条河有一个宽阔的边沿，将河流与陆地分开。
3. 3. The book's edge is worn from years of use.
   这本书的边缘磨损严重，已经使用了多年。