卡斯尔雷是北爱尔兰唐郡一个风景如画的小镇。

___Castlereagh is a picturesque town in County Down, Northern Ireland.

卡斯尔雷勋爵是拿破仑战争后的重要外交家。

Viscount ___Castlereagh was a key diplomat after the Napoleonic Wars.