Ключевые слова: background, backhand, ball, boy, business, call, cell, championship, club, competitive, equipment, fitness, forehand, game, guy, hand, health, human, leisure, male, man, match, message, mobile, network, person, phone, ping, play, pong, racket, red, rocket, round, screen, shot, show, smart, social, speed, sport, table, talk, technology, training, travel, vacation, white, youth,