Noun:

1. a small pipe sounding a tone of standard frequency; used to establish the starting pitch for unaccompanied singing

pitchupn.上仰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pitching anticline伏背斜pitch scale factor音调比例因子pitch and putt golf小型高尔夫球pitch of the rivets铆钉距Pitch Control Motor俯仰控制电动机pitch guidance loop俯仰角制导回路pitch angle control倾角控制pitching of vehicle车辆前后颠簸pitch on a mountain在山上扎营pitch worker cancer沥青工癌

1. I am only sorry I didn't bring Seth Sprague along with me, with his pitch pipe, just to take the shine off of them there singers.
   我只是遗憾没有把塞思·斯普拉格和他的律管一起带来，好让那几位唱歌的相形见绌。