Based on the learning of existing works，generative AI greatly reduces the cost of human creation.While existing laws can answer most of the copyright-related questions posed by generative AI，the answers may not match the expectations of creators affected by generative AI. In particular，judgments on the principle of fair use are different in courts and legal cases of different countries. In addition to the learning phase of a generative AI，the output it produces may also be copyrighted. Since the relationship between AI generated works and human authors is complex and the digital content is globally distributed，copyright rules related to generative AI need to be updated at the national and international levels，rather than relying solely on judicial precedents for clarification.

Digital linguistics is a new subject which studies the application and development of language in digital environment. Different from computational linguistics，digital linguistics has a broader research horizon.Its core goal，not only limited to the use of computational means to solve specific language processing tasks，focuses on the comprehensive collection，systematic management，fine analysis，and visual presentation of language data；it pays attention to the industrialization of research results，and is closely related to digital people. China has made initial progress in the field of digital linguistics research，yet，it can further develop infrastructure construction，the construction of disciplinary and educational systems，and the industrialization of research results. In the future，digital linguistics will show its unique value in more application scenarios including language education，public service，and business.

As the underlying structure of high-quality economic development，digital new infrastructure is strategically significant for enhancing the resilience of China’s industrial chain and building a modern industrial system. The impact of digital new infrastructure on the resilience of industrial chain and its mechanism is discussed theoretically，and empirically，the relationship between the two is tested based on the panel data of 30 provinces from 2011 to 2022. It is found that new digital infrastructure significantly promotes the resilience of industrial chain. Mechanism analysis finds that digital new infrastructure boost the resilience of industrial chain by improving the stock of innovative human capital and the development level of digital finance. In terms of threshold effect，the impact of digital new infrastructure on the resilience of industrial chain has a marginal effect which displays the threshold feature from increasing to decreasing. Heterogeneity analysis shows that the promotion effect of new digital infrastructure on industrial chain resilience is stronger in the eastern region and the region with high science and technology investment level；in the sub-dimensions of digital new infrastructure，the impacts of information infrastructure and innovation infrastructure on the resilience of industrial chain are evident，while the impact of integration infrastructure is not evident.