pitch-wheel

英['pɪtʃw'iːl] 美['pɪtʃw'iːl]
  • n.相互啮合的齿轮
  • mixture n.混合;混合物
  • pitch n.球场;程度;音调;推销;投掷;街头商贩摊位;沥青;树脂;松脂v.投;颠簸;搭帐篷;定调;推销;用沥青覆盖