revise a contract

例句：

1. 1.The book needs to be revised for the new edition.
   这本书需要为新版进行修订。
2. 2. She revises her writing every day to improve her skills.
   她每天修改她的写作以提升技能。
3. 3. The teacher asked us to revise our essays before the exam.
   老师要求我们在考试前修改我们的论文。