gnaw /ˈnɔ/
 (vt.)(vi.)咬,啃,消耗,折磨,侵蝕


 Gnaw v. t. [imp. & p. p. Gnawed p. pr. & vb. n. Gnawing.]
 1. To bite, as something hard or tough, which is not readily separated or crushed; to bite off little by little, with effort; to wear or eat away by scraping or continuous biting with the teeth; to nibble at.
    His bones clean picked; his very bones they gnaw.   --Dryden.
 2. To bite in agony or rage.
    They gnawed their tongues for pain.   --Rev. xvi. 10.
 3. To corrode; to fret away; to waste.


 Gnaw, v. i. To use the teeth in biting; to bite with repeated effort, as in eating or removing with the teeth something hard, unwieldy, or unmanageable.
    I might well, like the spaniel, gnaw upon the chain that ties me.   --Sir P. Sidney.

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 gnaw
      v 1: bite or chew on with the teeth; "gnaw an old cracker";
           "chewed on a cookie"
      2: become ground down or deteriorate; "Her confidence eroded"
         [syn: erode, gnaw at, eat at, wear away]
      [also: gnawn]