border of relative dullness

例句：

1. 1.The border between China and India is very important.
   中国和印度之间的边界非常重要。
2. 2. The border town has a lot of history to tell.
   这个边境小镇有很多历史可以讲述。
3. 3. The border is where the two countries meet.
   边境是两国交汇的地方。