a mine of information
习语信息源泉；知识宝库
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释义
a mine of information (about / on sb / sth)
信息源泉；知识宝库
a person, book, etc. that can give you a lot of information on a particular subject
释义来自《牛津高阶英汉双解词典》第 9 版
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信息源泉；知识宝库
a mine of information (about / on sb / sth)
信息源泉；知识宝库
a person, book, etc. that can give you a lot of information on a particular subject
释义来自《牛津高阶英汉双解词典》第 9 版