1. Professional knowledge: Liu Ying, as a tutor of the bean maker, has rich Chinese knowledge and cultural literacy, and can provide students with professional learning guidance to help them improve their Chinese level and cultural literacy.

2. Content: Liu Ying pays great attention to the cultural accomplishment and language expression of the players in the selection. She will strictly control the content of the contestants to ensure that the information conveyed by each contestant is accurate and can guide the correct values.