Objective:To conduct a multidimensional quantification and analysis of the development trajectory of both "quality" and "quantity" in China's higher education from 2001 to 2021, and lay a solid foundation for the construction of a high-quality education system.Methods:Based on macro statistical data on education in China from 2001 to 2021, a comprehensive indicator system for the development level of higher education was established. This system included six dimensions: educational conditions, financial support, institutional safeguards, scientific research, social services, and international collaboration. Methods such as entropy-weighted TOPSIS, general difference index, spatial autocorrelation, and hot spot analysis were used to evaluate the level of high-quality development of higher education and its spatial differentiation. Additionally, an obstacle degree analysis model was used to evaluate the factors hindering the high-quality development of higher education.Results:The high-quality development level of China's higher education has steadily improved, with a growth rate of 2.85%. The spatial distribution exhibited a clustering pattern, with stable hotspot regions established in the eastern region characterized by significant "spillover" effects. Concurrently, the western regions narrowed the development gap compared with other areas. Scientific research represents the primary challenge to achieving high-quality development in higher education, with an average obstacle degree of 18.46%. Books per student, fixed assets per student, foreign technology imported per institution, research & development project funds, research & development projects per institution, and personnel investment in research & development projects were important constraints on the development of higher education in China and the provinces.Conclusions:Resource sharing and linkage need to be guaranteed by policy and institutional support, and each subject of higher education should give full play to its own advantages to contribute to the high-quality development of higher education through interregional linkage development, mutual synergy, and common progress.

Polysaccharides are the important material basis of traditional Chinese medicine（TCM）， and have various pharmacological activities such as immunomodulation， antitumor and anti-aging. Due to the large molecular weight of TCM polysaccharides， their structural analysis and oral absorption mechanism are facing technical challenges， and the current research on their structure-activity relationships has made some breakthroughs， while the research on their oral absorption mechanisms is relatively slow. In-depth study of the oral absorption mechanism of TCM polysaccharides is not only crucial for the interpretation of their action pathways and efficacy in vivo， but also helpful for the interpretation of their pharmacological effects， rational clinical applications and the discovery of new targets. In recent years， the application of fluorescent labeling and isotopic labeling methods has provided new technical means for the oral absorption studies of polysaccharides， which has promoted the development of oral absorption studies of TCM polysaccharides. In this paper， we reviewed the oral absorption pathways and labeling techniques of TCM polysaccharides， and concluded that they can be absorbed orally through transmembrane， cellular bypass， and M-cell-mediated transport， of which transmembrane pathway is the main absorption pathway， and summarized the labeling reactions of four fluorescent labeling and isotopic labeling methods with TCM polysaccharides， which can provide references for evaluating the absorption pathways of TCM polysaccharides， screening active TCM polysaccharides， establishing pharmacodynamic models and comprehensively elucidating the mechanism of TCM polysaccharides.