谁能用英语介绍下俄罗斯，谢谢。

Russia is located in northeastern Europe and northern Asia. It is the largest country in the world.Russia shares boundaries with the Arctic Ocean on the N, northern Pacific Ocean on the W, China.
it has long history and has many kinds of culture,it combined the western cultures. Russians like operas,ballet and vodka.when ther meet the others ,they shake hands with them.being invited,they take flowers as their gift.they hate the number 13,while they think 7 is a sigh of happiness and success.