erasing of information

例句：

1. 1. The writer erased the mistakesin his article.
   作家在文章中抹去了错误。
2. 2. The company erased all traces of its past operations.
   公司抹去了所有过去操作的痕迹。
3. 3. The teacher erased the test paper and started over.
   老师擦掉了试卷并重新开始考试。