Based upon previous studies on speech acts and legal speech acts by austin ( 1962 ) , searle ( 1975 ) , and trosborg ( 1995 ) , legal speech acts are classified into three types : explicit , conventionalized and implicit 本文还提出,可以根据其中施为动词的有无、施为用意的强弱把法律言语行为划分为显性、规约性和隐性三大类。