where·in·to /-ˈɪn(ˌ)tu/
  (ad.)向那
  Where·in·to adv.
  1. Into which; -- used relatively.
  Where is that palace whereinto foul things
  Sometimes intrude not?   --Shak.
     The brook, whereinto he loved to look.   --Emerson.
  2. Into what; -- used interrogatively.
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