Разделите слова на 2 группы с долгим [ju:] и кратким [^] : music, butter, sun, bus, Dutch, united, gun, avenue, umbrella, menue, new, hurry, uncle, unhappy, dune

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[ju:]: music, avenue, menue,new, dune, united.[ʌ]: butter, sun, bus, Dutch, gun, umbrella, hurry.

music ['mjuːzɪk]butter ['bʌtə]sun [sʌn]bus [bʌs]Dutch [dʌtʃ]united ['ju'naɪtɪd]gun [gʌn]avenue ['ævɪnjuː] umbrella [ʌm'brelə]menu ['menjuː]new [njuː]hurry ['hʌrɪ]uncle ['ʌŋkl]unhappy [ʌn'hæpɪ]dune [djuːn]