边框宽度

例句：

1. 1. The border between China and India is a long and complex one.
   中国和印度之间的边界很长且复杂。
2. 2.The artist's use of color in the painting adds a sense of depth to the border.
   艺术家在这幅画中使用的颜色为画面增添了深度。
3. 3. The border between two countries can be a source of tension and conflict.
   两个国家之间的边界可以成为紧张和冲突的源头。