You can't draw dashes on paper for the sake of beauty. Generally speaking, dashes should be long lines, not short lines, because they are different in grammar and usage. In the paper, you can use a long dash for the sake of beauty, but don't put the dash in a box. If you use word processing software such as MicrosoftWord, you can use the caret function to insert the correct dash. If you use typesetting software such as LaTeX, you can use "-"to enter dashes. No matter what kind of software you use, you should avoid putting dashes in the box, so as not to affect the beauty and professionalism of the paper.