peddler           
noun [ C ] uk/ˈped.lər/ us/ˈped.lɚ/ (UK also pedlar)
 (尤指旧时沿街叫卖的)小贩
especially in the past, a person who travelled to different places to sell small goods, usually by going from house to house
  disapproving(思想的)散布者,兜售者 
someone who gives ideas to other people
  a peddler of New Age philosophies 到处散布新时代哲学思想的人 
 (drug) peddler old-fashioned 毒品贩子
someone who sells illegal drugs to people
  I wish the police would arrest all the drug peddlers that hang around in our local park.
 She was often found hanging out with suspected peddlers.
 They didn't usually jail first-time drug peddlers.
 Police issued photos of the man, thought to be a major drug peddler in Manchester.
 With the increase in tourism, drug peddlers have become more of a problem.