Each of these acronyms means roughly the same thing. In each, the learners already have another native or "mother" language, and they want to learn English as well.
iː t̠ʃ WORD_BOUNDARY ə v WORD_BOUNDARY ð iː z WORD_BOUNDARY æ k ɹ ə n ɪ m z WORD_BOUNDARY m iː n z WORD_BOUNDARY ɹ ʌ f l i WORD_BOUNDARY ð ə WORD_BOUNDARY s eɪ m WORD_BOUNDARY θ ɪ ŋ WORD_BOUNDARY ɪ n WORD_BOUNDARY iː t̠ʃ WORD_BOUNDARY ð ə WORD_BOUNDARY l ɜː n ə ɹ z WORD_BOUNDARY ɔ l ɹ ɛ d i WORD_BOUNDARY h æ v WORD_BOUNDARY ʌ n ʌ ð ə ɹ WORD_BOUNDARY n eɪ t ɪ v WORD_BOUNDARY ɔ ɹ WORD_BOUNDARY m ʌ ð ə ɹ WORD_BOUNDARY l æ ŋ ɡ w ɪ d̠ʒ WORD_BOUNDARY æ n d WORD_BOUNDARY ð eɪ WORD_BOUNDARY w ɔ n t WORD_BOUNDARY t ə WORD_BOUNDARY l ɜː n WORD_BOUNDARY ɪ ŋ ɡ l ɪ ʃ WORD_BOUNDARY æ z WORD_BOUNDARY w ɛ l WORD_BOUNDARY