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active transport

n.
1.transport of a substance (as a protein or drug) across a cell membrane against the concentration gradient

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    Idiom of the Day

    harp on (something)
    to talk repeatedly and tediously about something
    My friend has been harping on his lack of money for several weeks now.



    1.
    How long do you think it will take ________ we'll be in a position to implement the changes to our distribution system?

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