The explanatory power of the relevance theory lies in that it can explain the literal meaning and non-literal meaning under the same frame of the theory, but the explanation of the non-literal meaning needs more effort and more dependence on the cognitive context. 关联理论的解释力在于它可以在同一理论框架下解释字面意义花和非字面意义,只是后者需要付出更多的努力。