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单词 primary source
释义

Example sentences
primary source

The most common primary sources are written documents.
A Short Guide to Writing About History (1995)
There can be little doubt that the primary source of these evils is the academy.
Tenured Radicals: How Politics Has Corrupted Higher Education (1990)
The primary sources that she cites are the printed calendars available online.
The Times Literary Supplement (2014)
Seelight sourceSeeprimary task

COBUILD Collocations
primary source

alternative source
anonymous source
constant source
important source
light source
main source
primary source
sustainable source
unexpected source
unlikely source
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更新时间：2025/1/9 18:27:05