White Paper
noun [ C ] uk/ˌwaɪt ˈpeɪ.pər/ us/ˌwaɪt ˈpeɪ.pɚ/
白皮书（某些国家的政府说明某方面未来立法的信息和细节的正式报告）
in various countries, a government report on a particular subject giving information and details of future planned laws
a White Paper on employment 就业白皮书
Compare: Green Paper