英语词汇“up-and-down”是什么意思，“up-and-down”的读音、用法及例句翻译-烛光网

词汇	up-and-down
释义	up-and-downAnd elevator is something that goes up-and-down.
随便看	mammary gland mammas mamma's boy mammee apple mammies mammiferous mammilla mammillae mammillate mammillated mammogram mammogram mammographies mammography Mammon mammoplasty mammoth mammoth mammoths mammy Mamoré man man man Man

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