San Francisco’s City of Refuge ordinance prevents local police from collecting information about a person’s immigration status if they have not been charged with any crime (Ridgley (2007) Urb. Geog. 29, 1).
科学参考收录了60776条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。