country表示乡村音乐可数吗

　　How long have you been living in this country?

　　你在这个国家居住多久啦？

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

　　她不知道外国的`生活会是什么样。

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

　　这是个自由的国家，我想说什么就说什么！

　　This operation has never been performed in this country.

　　这个国家从未做过这种手术。

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

　　在工程学领域上，这所大学位居本国第一。