I think the first thing we need to know is the reason behind the 20% salary reduction for teachers. If it is because of some uncontrollable external factors, such as the epidemic situation, the economic pressure of the school has increased, then reducing the salary of teachers by 20% at this time can be regarded as a sacrifice to tide over the difficulties together, and it can also be regarded as a social responsibility and responsibility of teachers. However, if teachers' salaries are reduced by 20% just because the school has reduced investment in education or in order to reduce expenses, it is not a good thing in my conscience, which may affect teachers' quality of life and work enthusiasm, and may lead to teachers' resignation and damage the image of the school. In short, in any case, a pay cut should be an expedient measure. If this expedient measure can really improve the quality of education and teaching and the growth and development of students, it is worth trying and discussing.