an aggressive salesman who uses a fast line of talk to sell something
someone who travels about selling his wares (as on the streets or at carnivals)
同义词：peddler, pedlar, packman, hawker
pitchman详细解释
pitch.man n.（名词）A hawker of small wares, as on the streets or at a carnival.摊贩：街头或狂欢节上卖小玩意儿的商贩One who makes aggressive selling or promotional efforts.推销员，宣传员：做出大力推销努力的人One who delivers commercials on radio or television.广告员：在电视或广播里推销商品的人
