[, ] () an act of showing or explaining a product or service, especially a new one（尤指新产品或服务的）示范，演示◆They invited us to give a product demonstration.他们邀请我们作产品演示。◆We are promoting the camera through in-store demonstration.我们正通过店内演示促销这款相机。➡demo noun⨁to give / provide a demonstration作示范⨁a customer / product / sales demonstration顾客／产品／销售演示⨁(an) in-store / a practical / working demonstration店内／操作／工作演示