A dealer is a person whose business involves buying and selling things. 商人
noun [专属名词]商人,交易商;<非正式>毒品贩子
A dealer is someone who buys and sells illegal drugs. 毒品贩子• They will stay on the job for as long as it takes to clear every dealer from the street. 他们将坚持工作,直到街道上所有的毒品贩子都被清除。