Every child, every one of you, every one of us was brought up to know that one must never do wrong, even if good consequences are seen to follow.

每一个小孩，在座的各位，我们每一个人都从小被教育,不要做坏事，就算结果是善也不行。

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And in terms of using these equations in solving problems on the exam, and also using these constants, make sure if you think there might be any chance you're going to get any little part of a problem wrong or do a calculation inaccurately, you need to write out every single step of your thinking as you write out these problems.

而当你在考试过程中用这些公式,来解题时，加上运用这些常数，如果你觉得有可能,在某一小问上出错,或者出现计算错误，请务必把你的思路一步一步地都写出来,当你在答题的时候。

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