Briefly discussing the word "yan

The wordyanis explained as yushior yu+object in explanations of words in ancient books.Yanequals yushi,and they can be contained and explained each other in other articles in ancient books.It differs entirely from zhior other pronouns which are equal to zhiin grammatical meaning,but it is the same as yu+object.In addition,in ancient chinese there are some verbs,which can be used as either transitively or intransitively,followed by zhior yanare not the same in meaning.So a conclusion can be reached from the five aspects above:yancan be used as a word which contains the prepositionyuand the pronounshi.