【正确答案】正确答案：word of mouth, public praise Word of mouth is the passing of information from person to person by oral communication, which could be as simple as telling someone the time of day. In marketing, word-of-mouth communication (WOM) involves the passing of information between a non-commercial communicator (i. e. someone who is not rewarded) and a receiver concerning a brand, a product, or a service. Marketers place significant value on positive word-of-mouth, which is traditionally achieved by creating products, services and customer experiences that generate conversation-worthy "buzz" naturally.