In Wang Daowen's words,'be' referred to different emotional lines. The specific explanation was as follows: 1BE(Unitary) emotional line: It usually refers to the protagonist's emotional journey from the beginning of secret love, confession, rejection to the final break, revenge, etc. It represents the protagonist's inner struggle, pain, and contradictory emotions in the process of growth. The main topic is often about love, friendship, kinship, etc. 2. HE(Unitary) Emotion Line: Contrary to BE, HE usually refers to the protagonist having only one emotion from the beginning to the end, namely love. It represents the protagonist's pure feelings for someone or something. The emotional process is relatively simple, but it is also purer and deeper. 3Se(Unitary) emotional line:Se usually refers to the protagonist having only one emotion from the beginning to the end, but the emotional process contains certain elements of friendship, such as betrayal of friends, redemption of friends, etc., expressing the complex psychology and changes of the protagonist in terms of emotions. 4BE-HE(Uniled-Dual) emotional line: This emotional line refers to the protagonist's growing up experience of one-sided crush, confession, rejection and other emotional processes. Later, he gradually discovered that he could have two emotions at the same time and finally overcame his inner contradictions and chose a more balanced lifestyle. It should be noted that different authors may use different symbols to represent different emotional lines. Therefore, when reading Wang Daowen, you need to understand and analyze it according to the specific plot and the author's style.