You should use this option to delete old execution runs that failed or whose results are not longer needed.
可用这一选项来删除那些失败或其结果不需保留的旧有执行运行。
This is easy with email: just make sure never to delete old emails, and use filters for effortless organization.
对于电子邮件来说这很容易：只要不把旧邮件删除，使用过滤器就能毫不费力的做到。
Periodically, you may want to search for BAK files and delete old ones.
你可能希望定期搜索BAK文件并删除其中的旧文件。
The system's functions consist of add new book, delete old book, borrow book, return book, book catalog searching and fuzzy reader searching, etc.
系统功能包括：添加新书、删除旧书、借书、还书、书目查询和读者信息的模糊查询。
Dump your old facebook friends, clean up your laptop desktop, and delete old pictures you don't want — or would hate to get in the wrong hands — from your camera or phone.
取关脸谱上不联系的朋友，清理笔记本电脑桌面，删除照相机或手机上不想要的旧照片——或是不想给有些人看到的照片。
删去旧的帐号。
Delete old entries in the paired devices list.
删除已配对设备列表中的陈旧条目。
Delete old entries in the paired devices list.
删除已配对设备列表中的陈旧条目。
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