Ключевые слова: apartment, background, blackboard, city, cloud, communication, concept, definition, design, different, diversity, education, english, foreign, global, grammar, greet, hello, houses, housing, international, language, learning, meet, paper, skyscraper, speak, speech, street, table, tag, tagcloud, talking, tourism, translation, travel, university, variety, various, vocabulary, white, wood, word, worldwide,