pitchyadj.沥青的；涂沥青的；沥青似的；漆黑的pitchn.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pitch circle节距圆pitch thread齿节螺纹,径节螺纹pitchbllende[医] 沥青铀矿pitch blende沥青铀矿pitching ace第一投手pitch factor节距因数pitched work块石护坡工程,砌石护坡pitch spread节距张度pitched roofn.〈建〉斜屋顶pitch accent音高重音