英语词汇expand upon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

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随便看	Economics degree Economics Department Economics Department economics development economics diploma Economics Division Economic section Economic section economic sectors economic security economic segments economic self interest economic self-reliance economic self-sufficiency economic self–sufficiency economic self–sufficiency economics emphasis economic sense economic sentiment economic sentiment indicator economic series economic service life economic services economic setback economic setup

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。

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