The Dynamic Zero-COVID Policy in China spanned three years and diverse emotional responses have been observed at different times. In this paper, we retrospectively analyzed public sentiments and perceptions of the policy, especially regarding how they evolved over time, and how they related to people's lived experiences. Through sentiment analysis of 2,358 collected Weibo posts, we identified four representative points, i.e., policy initialization, sharp sentiment change, lowest sentiment score, and policy termination, for an in-depth discourse analysis through the lens of appraisal theory. In the end, we reflected on the evolving public sentiments toward the Dynamic Zero-COVID Policy and proposed implications for effective epidemic prevention and control measures for future crises.

The mind-blowing technology at the Olympics is always impressive, but it's proving to have more than just the cool factor in Beijing. These innovations are cutting down on human contact to help keep COVID-19 at bay. The 2022 Winter Games have brought new events like the monobob and big air, but other novel concepts are functioning in the Olympic bubble to combat the spread of the coronavirus. The Beijing Organizing Committee for the 2022 Olympic and Paralympic Winter Games outlined many ways robots have taken over responsibilities normally performed by humans. An anti-epidemic robot stands at the entrance to each competition area.