grav·el /ˈgrævəl/
 碎石(vt.)鋪碎石,使困惑,使擱淺
 grav·el /ˈgrævəl/ 名詞
 尿沙,沙礫,砂礫,尿砂
 Grav·el n.
 1. Small stones, or fragments of stone; very small pebbles, often intermixed with particles of sand.
 2. Med. A deposit of small calculous concretions in the kidneys and the urinary or gall bladder; also, the disease of which they are a symptom.
 Gravel powder, a coarse gunpowder; pebble powder.
 Grav·el, v. t. [imp. & p. p. Graveled or Gravelled; p. pr. & vb. n. Graveling or Gravelling.]
 1. To cover with gravel; as, to gravel a walk.
 2. To run (as a ship) upon the gravel or beach; to run aground; to cause to stick fast in gravel or sand.
    When we were fallen into a place between two seas, they graveled the ship.   --Acts xxvii. 41 (Rhemish version).
    Willam the Conqueror . . . chanced as his arrival to be graveled; and one of his feet stuck so fast in the sand that he fell to the ground.   --Camden.
 3. To check or stop; to embarrass; to perplex. [Colloq.]
    When you were graveled for lack of matter.   --Shak.
    The physician was so graveled and amazed withal, that he had not a word more to say.   --Sir T. North.
 4. To hurt or lame (a horse) by gravel lodged between the shoe and foot.
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 gravel
      adj : unpleasantly harsh or grating in sound; "a gravelly voice"
            [syn: grating, gravelly, rasping, raspy, rough]
      n : rock fragments and pebbles [syn: crushed rock]
      v 1: cause annoyance in; disturb, especially by minor
           irritations; "Mosquitoes buzzing in my ear really
           bothers me"; "It irritates me that she never closes the
           door after she leaves" [syn: annoy, rag, get to, bother,
            get at, irritate, rile, nark, nettle, vex,
           chafe, devil]
      2: cover with gravel; "We gravelled the driveway"
      3: be a mystery or bewildering to; "This beats me!"; "Got me--I
         don't know the answer!"; "a vexing problem"; "This
         question really stuck me" [syn: perplex, vex, stick,
          get, puzzle, mystify, baffle, beat, pose, bewilder,
          flummox, stupefy, nonplus, amaze, dumbfound]
      [also: gravelling, gravelled]