a deviation from the plan的用法和样例：
- A deviation from the proper or expected course.
- Running in the hall is a deviation from the school rules and will not be allowed.
- According to Rod Ellis (1985, 1987), an error can be defined as a deviation from the norms of the target language.
- So now when a site is selectively targeted by the Net Nanny, it's more a deviation from the norm, and thus newsworthy.
- A deviation from a direct course of action.