num.第九；九分之一ninth详解释义ninth英英释义num.(数词)第九九分之一adj.(形容词)第九的九分之一的第九个的n.(名词)九分之一第九日【音】第九度音程第九Nounposition nine in a countable series of things;"going into the ninth they were a run ahead" one part in nine...

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