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pitch for the tape赛跑的最后冲刺pitch-and-puttn.【英】小型高尔夫球赛pitch-and-tossn.掷钱Pitch quantization基音量化pitching vibration俯仰振动pitch into the job积极投入工作Pitched roof house半坡房pitch modification变调Pitch-controlled变桨距控制pitch of vibration振动周期