This paper examines the multilingual translation efforts of a group of university student volunteers during the COVID-19 outbreak in Shanghai. Data were collected through semi-structured interviews of the volunteer team leader, team members, and a local community health worker. Findings identified time constraints, limited language proficiency, and limited technical knowledge as the major challenges confronting the university volunteers. In order to overcome the challenges, they worked in close collaboration and used translingual and network strategies to facilitate prompt and high-quality crisis translation. Findings suggest that foreign language university students in local universities may serve as readily available multilingual resources and can be mobilized in prompt response to the grassroots multilingual needs of the local community in times of crisis. The paper ends with implications for measures and strategies to enhance effective emergency language service and crisis communication for global multilingual cities.