How long have you been living in this country?

　　你在這個國家居住多久啦？

　　She didn't know what life in a foreign country would be like.

　　她不知道外國的生活會是什么樣。

　　It's a free country; I'll say what I like!

　　這是個自由的國家，我想說什么就說什么！

　　This operation has never been performed in this country.

　　這個國家從未做過這種手術。

　　The university is ranked number one in the country for engineering.

　　在工程學領域上，這所大學位居本國第一。