剑桥词典a province of Ireland, part of which is now in Northern Ireland and part in the Republic of Ireland 阿尔斯特(爱尔兰的一个省,分属北爱尔兰和爱尔兰共和国) a name for Northern Ireland, which is part of the UK 阿尔斯特(对北爱尔兰的称呼) 返回 Ulster