reverse grade

例句：

1. 1. She decided to reverse her grades and take a year off.
   她决定倒转她的年级，休息一年。
2. 2.The company is reverting to its old ways after the new management took over.
   在新的管理层接管后，公司正在恢复其旧有的方式。
3. 3. He reverted back to his old habits after quitting smoking.
   他戒烟后重新回到了他的旧习惯。