First of all, the single-track system means that there are only undergraduate degrees in the education system of American universities, and there are no graduate degrees. Compared with other countries' education systems, American monorail education system pays more attention to the cultivation of independent learning and practical ability. Students can choose different subjects for in-depth research according to their interests and career plans, and there are also a lot of research projects and practical opportunities for them to participate.

Secondly, the advantage of the monorail education system is that it provides a more free and flexible education mode, so that students have more time and opportunities to explore their own interests and career development direction, rather than blindly pursuing graduate diplomas. This kind of education system can cultivate more talents with independent thinking ability, creativity and innovative spirit. They not only have profound academic and professional knowledge, but also can find solutions to problems in practice.

Monorail systems also have some disadvantages. For example, in some professional fields, mastering deeper professional knowledge requires a higher degree level. At this time, the monorail system in the United States may limit students' further development in these fields. In addition, because the bachelor's degree is the only degree, many undergraduate graduates will encounter some challenges of career promotion after entering the workplace, and they need to improve their professional ability through continuous learning.