英语词汇up-and-downer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	up-and-downer
释义	请查阅词条：up and down
随便看	Book of the Dead book of words book original entry book out book-out book page bookplate bookplates book post bookrack bookracks bookrest bookrests book review book reviewer book reviewers book reviewing book reviewing book reviewings book reviews books books' books account book scorpion book scorpion's

英汉双解词典包含548777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。