pegged exchange rate system

例句：

1. 1.The car was pegged securely to the wall.
   这辆车被牢固地钉在墙上。
2. 2. The rope was pegged to the post with a nail.
   绳子用钉子钉在柱子上。
3. 3.The door was pegged shut before we left.
   我们离开前把门钉上了。