调研 diàoyán to investigate and research
to investigate and research; research; investigation
How to remember 调研: 调 tune + 研 research = to investigate and research.
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How it is used
- To investigate and research (field research) - 下基层调研 (xià jīcéng diàoyán) go do fieldwork at the grassroots, 市场调研 market research.
- Note reading diào here (not tiáo). A contraction of 调查研究; common in official, business and policy contexts.
- Implies going out to gather firsthand information, then analyzing it.