英语词汇up-and-down是什么意思，up-and-down的用法、释义、翻译、读音、例句、短语词组-英汉汉英翻译词典-觉斋网

单词	up-and-down
释义	up-and-down　 ['ʌpәn'daun]adj.上上下下的, 起伏的, 来来往往的, 变动的
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