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uncertainty principle

n.
1.(quantum theory) the theory that it is impossible to measure both energy and time (or position and momentum) completely accurately at the same time

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    Idiom of the Day

    knock one's head against the wall
    to waste time trying to do something with no success
    The company manager's have been knocking their heads against the wall trying to solve the problem.



    1.
    I would ________ you to take his offer rather than refuse it.

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