删除线

例句：

1. 1. I deleted the old file from my computer.
   我从我的电脑上删除了旧文件。
2. 2. The teacher asked us to delete all the unnecessary notes.
   老师让我们删除所有不必要的笔记。
3. 3. After the meeting, we deleted the email with the controversial topic.
   会议结束后，我们删除了包含有争议话题的电子邮件。