答案是:教师释疑： Conversational implicature: In our daily life, speakers and listeners involved in conversation are generally cooperating with each other. In other words, when people are talking with each other, they must try to converse smoothly and successfully. In accepting speakers’ presuppositions, listeners have to assume that a speaker is not trying to mislead them. This sense of cooperation is simply one in which people having a conversation are not normally assumed to be trying to confuse, trick, or withhold relevant information from one another. However, in real communication, the intention of the speaker is often not the literal meaning of what he or she says. The real intention implied in the words is called conversational implicature.
