Deferred defense. If the blind trial fails, there will be a second blind trial and the defense will be postponed. Revise the paper in time and ask the tutor to help find out the shortcomings of the paper. It is common in academic research that a paper fails to pass blind evaluation. When the paper fails to pass the blind evaluation, it is necessary to check the defects in the paper, revise the paper according to peer review opinions, keep abreast of academic trends, actively participate in academic exchange activities, and finally resubmit the paper to make the paper pass the blind evaluation.