请修缮这段文字要求表达要清晰语法要准确。Under this speech act the speaker mainly wants to adapt the external world to the words he expresses through the addressee that is the subjective desire of the addressee to do some

In this speech act, the speaker aims to align the external world with the words they express to the addressee. This involves the addressee's subjective desire to take action. Li Bo and Wang Xinxue (2015) have highlighted this point. Considering the language features of public service announcement language, the author has categorized directive writing into two types: suggestion and request.