blind trial () a way of deciding which product out of a number of competing products is the best or most popular, or how a new product compares with others. People are asked to try the different products and to say which one/ones they prefer, but they are not told the names of the products盲测（指在消费者不知道产品名称的情况下测试他们对产品的看法）◆In blind tests, consumers chose our cola over more established brands.在盲测中，消费者选择我们的可乐饮品超过更为知名的品牌。➡double-blind test