The red wavy line below the graduation thesis indicates the error prompt. Because this is the automatic checking function of Word. If a green wavy line is given, it means that WORD thinks your grammar or character collocation may be wrong, so I suggest you check it. If a red wavy line is given, it means that Word has confirmed that there is something wrong with your text collocation or grammar, and it is strongly recommended that you correct it. But if it is a special usage, it will not be displayed when printing. As a course, graduation thesis is the last link of professional education for ordinary secondary specialized schools, junior colleges, undergraduate colleges, higher education self-study exams and graduate students. In order to enable students of this major to concentrate on scientific research and training, students are required to independently carry out summary work and write papers before graduation.