Other killjoys will argue that customers are incapable of knowing what really makes a product or service valuable, and therefore customer input is unnecessary.

其他扫兴的事是认为顾客没有足够的能力让产品和服务更有价值，因此他们认为消费者投入是不必要的。

The killjoys who conducted this test point out that sitting through a two-hour movie isn't exactly "climbing Mt. Everest," but theaters are feeding us like we are.

killjoys进行的实验指出，坐2小时看电影肯定比不了攀登珠峰，但是从电影院给的吃食来看就跟我们真的要去爬珠峰一样。