The headmaster warns us not to break the school rules, or we'll be punished.
校长警告我们不要违反校规，否则我们将受到惩罚。
The students were told not to break any of the rules of the school.
学生们受到告诫， 不要违反校规。
Shostak points out that while most high-school biology textbooks include as requirements for life the ability to metabolize and reproduce, it's easy to think of things that break these rules.
肖斯塔克指出，尽管中学生物课本中将新陈代谢和繁殖能力作为生命的必要条件，但是我们仍然很容易想起不符合这些规律的事物。
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