A full backup — in other words, one where you copy all of the files from your system — would obviously capture everything, but it can be an expensive way of backing up your information.
完全备份,即复制系统中所有的文件,很明显这样做可以保存所有的信息,但这可能是一种代价很大的信息备份方式。
The credit bureau system use case, on the other hand, says "the credit institution actor requests a copy of a credit report."
另一方面,商业资信咨询机构系统用例表示“这个信用机构参与者请求信用报告的一个副本。”
They block most other normal operation of the system to emphasize the modality. An example is a dialog that makes all menu commands unavailable except Cut, Copy, and Paste.
阻塞了所有正常的操作以强调其模式。例如对话框让除了剪切,复制和粘贴之外的菜单项都灰掉。
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