bumbun tte yuu koto
bumbun tte yuu koto ?
b ɯ m b ɯ n WORD_BOUNDARY t t e WORD_BOUNDARY j ɯː WORD_BOUNDARY k o t o WORD_BOUNDARY
b u m b u n WORD_BOUNDARY t t e WORD_BOUNDARY y u u WORD_BOUNDARY k o t o WORD_BOUNDARY