a document that legally allows sb to live and work in a country that is not their own 绿卡（允许外国人在本国居住和工作的法律性文件）
( ˌInternational ˈMotor Inˌsurance Cerˌtificate) in the UK, an insurance document that you need when you drive a car, motorcycle, truck, etc. in another country （在英国，指在国外开车所须的）绿色保险证