“向、往、朝”兼属动词和介词,本文只谈介词。作为介词,“向、往、朝”使用频率较高。在一些场合,它们可以相通,而在另一些场合,则又各有专职,不能换用,所以弄清这三个词的区别就很有必要。笔者对这三个介词的异同作一研究, “To, toward, towards ” Both verbs and prepositions, this article only about prepositions. As a preposition, “to, toward, North Korea ” higher frequency of use. In some cases, they can be interlinked, while in other occasions, they are full-time and can not be used interchangeably. Therefore, it is necessary to find out the differences between these three words. The author studies the similarities and differences between these three prepositions,