eaves·drop /ˈivzˌdrɑp/
  (vt.)(vi.)偷聽屋簷水
  Eaves·drop v. i.  To stand under the eaves, near a window or at the door, of a house, to listen and learn what is said within doors; hence, to listen secretly to what is said in private.
     To eavesdrop in disguises.   --Milton.
  Eaves·drop, n. The water which falls in drops from the eaves of a house.
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  eavesdrop
       v : listen without the speaker's knowledge; "the jealous man was
           eavesdropping on his wife's conversations" [syn: listen
           in]
       [also: eavesdropping, eavesdropped]