robbing back的用法和樣例：
例句
- A file opened for both reading and writing will cause trouble if a job must be rolled back to an old checkpoint image.
當一個任務必須回退到某箇舊的校驗映像的時候，如果以可讀寫方式打開文件就會導致麻煩。 - If we ever reach a brick wall given a specific input pattern, everything unwinds quickly and we are thrown right back to the guard.
如果我們在某個特定的輸入模式下到達死胡同，所有東西都會迅速回退，我們被拋至剛好在防護之後。
