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Interpreter Pattern: Given a language, the interpreter pattern can define a representation of its grammar and provide an interpreter at the same time. Clients can use this interpreter to interpret sentences in this language. The interpreter pattern will describe how to interpret these statements using pattern design after having a simple grammar. The language mentioned in the interpreter mode refers to any combination that any interpreter object can interpret. In the interpreter mode, a hierarchical structure of command classes representing grammar needs to be defined, that is, a series of combination rules. Each command object has an interpretation method, which represents the interpretation of the command object. Any permutation and combination of objects in the hierarchy of command objects is a language.你要怎么样才肯传我国术？你一直说，法不可轻传，要不我嫁给你吧。2. High requirements for technical research and development;The shops that have been bought in the building can also attach quality comments.想跟媳妇在乡间过这样耕种的日子，不想管朝廷的事了。