belt pitch

例句：

1. 1.He wore a belt to keep his pants up.
   他系了一条腰带，以免裤子下滑。
2. 2.The belt was too tight around her waist.
   腰带太紧了，勒在了她的腰上。
3. 3.She adjusted the belt on her bag to make it fit better.
   她调整了包上的腰带，使其更好看。