25 từ phát âm là /ɜ:/ (ơ dài) : Hurt, world, work, birthday, burn, girl, curn, were, search, her, shirt, hurn, bird, first, circus, worse, worst, journey, surf, coconut, thirteen, convert, verb, energy, heard.
25 từ phát âm là /ə/ (ơ ngắn) : Love, ago, doctor, brother, coconut, picture, national, never, ever, the, mother, famous, brush, table, vegetable, simple, apple, remember, suppose, elephant, October, become, comeback, today, some.
`#Study well`
