correcting timing errors

例句：

1. 1. The teacher corrected the student's mistakes during the exam.
   老师在考试期间纠正了学生的错误。
2. 2. The engineer was asked to correct the design of the new machine.
   工程师被要求修正新机器的设计。
3. 3.The software developer made several corrections to the code before releasing it.
   软件开发者在发布代码之前对代码进行了几次更正。