The usage of the word in classical Chinese is as follows: The word "Yi" has many uses in classical Chinese. One of the most common uses is as the meaning of the word "He" to mean "He" or "He but not the same." For example,"A vassal reported his illness to the Marquis of Qi, who sent someone to inquire about his illness. And he said,'The sick man is very ill, and I want to go. What shall I do?' He said,'If I serve the State of Qi, I must feed the people with fat and sweet food, and teach them benevolence and righteousness, and they will not complain, then I may go.' In addition, the word "Yi" could also be used as a preposition to express the meaning of relying on and because. For example,"So he told Lulu to offer his city." He said,'I have reported to Lu that there is a disaster, so I offer it to you.' There is also a special usage of the word "Yi" as the meaning of the word "You" to mean "like" or "similar to." For example,"The public and the battle to complete the Fu" Picking Wei "and return. His car is like a pile of corpses, and his song is like crying. To speak of his grief, to pay him back in his own way."