delve /ˈdɛlv/
  (vt.)(vi.)探究,查考坑,穴
  Delf n.  A mine; a quarry; a pit dug; a ditch. [Written also delft, and delve.] [Obs.]
     The delfts would be so flown with waters, that no gins or machines could . . . keep them dry.   --Ray.
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  Delve v. t. [imp. & p. p. Delved p. pr. & vb. n. Delving.]
  1. To dig; to open (the ground) as with a spade.
     Delve of convenient depth your thrashing floor.   --Dryden.
  2. To dig into; to penetrate; to trace out; to fathom.
     I can not delve him to the root.   --Shak.
  Delve, v. i. To dig or labor with a spade, or as with a spade; to labor as a drudge.
     Delve may I not: I shame to beg.   --Wyclif (Luke xvi. 3).
  Delve, n.  A place dug; a pit; a ditch; a den; a cave.
     Which to that shady delve him brought at last.
  The very tigers from their delves
  Look out.   --Moore.
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  delve
       v : turn up, loosen, or remove earth; "Dig we must"; "turn over
           the soil for aeration" [syn: dig, cut into, turn
           over]