How Siri can help, It is very easy now, if your are in trouble to understand Eglish US, UK Accents. Don't you worry now Siri can speak in 40 Accents. See Video
40 Accents of Siri
Standard, Arabic, Czech, Danish, German, Greek, English (Australia), English (United Kingdom), English (Ireland), English (United States), English (South Africa), Spanish, Spanish (Mexico), Finnish, French (Canada), French (France), Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Dutch (Belgium), Dutch, Norwegian, Polish, Portuguese (Brazil), Portugese, Romanian, Russian, Slovak, Swedish, Thai, Turkish, Chinese Mandarin ,Hong Kong Cantonese ,Taiwanese Mandarin