Republic of Ireland，whose capital is Dublin，lies just west of the UK.It has a population of more than 3 million and covers an area of more than 70 000 square kilometers.It has an amazing history of over 5 000 years.Everywhere you look are castles and historical places.

It has a mild sea climate.And it is not too cold in January and February and not too hot in July and August.

There are two official languages in Ireland：Irish，which is the national language，and English， which is the language of the majority of the population.

Now people there use euro as their currency.

说明文，介绍爱尔兰共和国的基本情况，写全要点。