the activity of selling goods, or of trying to sell them, by advertising or displaying them 推销；展销 products connected with a popular film, person or event; the process of selling these goods （根据受欢迎的电影、人物或事件而生产的）周边产品；相关产品的销售 millions of pounds’ worth of Batman merchandising 价值数百万英镑的蝙蝠侠的周边产品