A good system is one that keeps that worst-case setting as improbable as possible while also offering strong protection in the event of a less-extraordinary attack.
出自-2016年12月阅读原文
柯林斯高阶英汉双解学习词典释义
ADJ-GRADED
不大可能的;未必会(发生)的
Something that is improbable is unlikely to be true or to happen.