英语词汇back-of-the-envelope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	back-of-the-envelope
释义	back-of-the-envelope 1 ENTRIES FOUND: back-of-the-envelope (adjective) back-of-the-envelope adjective back-of-the-envelope adjective Learner's definition of BACK-OF-THE-ENVELOPE always used before a noun informal : done to provide a rough idea of something粗略估算的 I can't tell you the exact amount, but my back-of-the-envelope [=rough] calculation indicates a cost of about $300,000.我无法告知你确切的金额，但我粗略估算的费用在30万美元左右。
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英汉双解词典包含109353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。