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optical disk

n.
1.a disk coated with plastic that can store digital data astiny pits etched in the surface

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  • optical disc
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    Idiom of the Day

    nervous Nellie
    a timid person who lacks determination and courage
    The boy is a nervous Nellie and is afraid of the other students in the school.



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    Year : 1818
    Inventor : baron karl de drais de sauerbrun
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