crum·ble /ˈkrʌmbəl/
 (vi.)崩潰,破碎,滅亡(vt.)弄碎麵包屑


 Crum·ble v. t. [imp. & p. p. Crumbled p. pr. & vb. n. Crumbling ]  To break into small pieces; to cause to fall in pieces.
 He with his bare wand can unthread thy joints,
 And crumble all thy sinews.   --Milton.


 Crum·ble, v. i. To fall into small pieces; to break or part into small fragments; hence, to fall to decay or ruin; to become disintegrated; to perish.
    If the stone is brittle, it will crumble and pass into the form of gravel.   --Arbuthnot.
    The league deprived of its principal supports must soon crumble to pieces.   --Prescott.

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 crumble
      v 1: fall apart; "the building crimbled after the explosion";
           "Negociations broke down" [syn: crumple, tumble, {break
           down, collapse]
      2: break or fall apart into fragments; "The cookies crumbled";
         "The Sphinx is crumbling" [syn: fall apart]
      3: fall into decay or ruin; "The unoccupied house started to
         decay" [syn: decay, delapidate]