re·search /rɪˈsɝʧ, ˈriˌ/
  研究,調查,考察(vi.)研究,調查
  research
  背景研究
  research
  研究
  Re·search n.
  1. Diligent inquiry or examination in seeking facts or principles; laborious or continued search after truth; as, researches of human wisdom; to research a topic in the library; medical research.
     The dearest interests of parties have frequently been staked on the results of the researches of antiquaries.   --Macaulay.
  Syn: -- Investigation; examination; inquiry; scrutiny.
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  re·search, v. t.  To search or examine with continued care; to seek diligently.
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  research
       n 1: systematic investigation to establish facts
       2: a search for knowledge; "their pottery deserves more
          research than it has received" [syn: inquiry, enquiry]
       v 1: inquire into [syn: search, explore]
       2: attempt to find out in a systematically and scientific
          manner; "The student researched the history of that word"