public man公务人员publicadj.公众的；公共的；公开的n.民众；公众；大众Public security detention治安拘留public service facilities公共服务设施public physical exercises大众健身public benefits'safeguardpublic key authentication公钥认证public management talents公共管理人才public security specialty公安专业Public Health Service Actpublic know inside rights公众知情权Public function and items公共职能项目