英语词汇travel up and down怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	travel up and down
释义	up and down — 上下 ups and down— 低昂
随便看	conflict-ridden societies conflict ridden world conflict risk conflict-riven conflict rules conflicts conflicts about conflicts among conflicts and cooperation conflicts appear conflicts are caused conflicts are found conflicts are resolved conflicts arise conflicts arise between conflicts arising conflicts arose conflicts between documents conflicts caused conflict scenario conflicts emerged conflict sensitive conflict sensitivity conflict setting conflict settlement

英汉双解词典包含2273206条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。

up and down —