Simply analyze from the following aspects:

1. Structure mismatch: the majors studied by college students do not match the market demand after graduation. Some professional graduates are surplus, and some emerging industries are short of talents. This leads to fierce competition among college students in the job market, and it is difficult for enterprises to find talents that meet their own needs in the recruitment process.

Lack of skills and experience: For many graduates, lack of practical experience is an obstacle for them to find jobs. Enterprises usually hope to find experienced people who can work immediately when recruiting. This mismatch also makes it difficult for them to achieve common goals.

3. Unbalanced supply and demand: The market demand in some regions or industries is expanding, but the number of graduates in related majors is limited, which also makes it difficult for enterprises to recruit suitable talents in these regions or industries.

4. The expectations of both sides are different: college students want to find jobs with good salary and great development space, while enterprises want to recruit employees with high quality and strong adaptability. Inconsistent expectations make it difficult for both sides to meet each other's requirements.

In order to solve these problems, universities can improve their skills and practical experience and choose majors suitable for market demand. Enterprises can optimize the recruitment process, improve recruitment efficiency, establish good contacts with universities, and plan recruitment needs in advance according to market demand. The government can also take measures to provide employment guidance and training, strengthen cooperation in Industry-University-Research, and promote the matching of talents and jobs. Through such comprehensive efforts, the problems of "employment difficulties" for college students and "recruitment difficulties" for enterprises can be alleviated.