Here is classic tongue twister (скороговорка). Try saying it three times fast without stumbling. It's fun :) Russian: «Карл у Клары украл кораллы, а Клара у Карла украла кларнет.» Transliteration: "Karl u Klary ukral korally, a Klara u Karla ukrala klarnet." English meaning: "Karl stole corals from Klara, and Klara stole a clarinet from Karl."