para quê elas servem
para quê elas servem ?
p a ɾ æ WORD_BOUNDARY k e WORD_BOUNDARY ɛ l æ s WORD_BOUNDARY s ɛ ɾ ə v eɪ ŋ WORD_BOUNDARY
p a r a WORD_BOUNDARY q u ê WORD_BOUNDARY e l a s WORD_BOUNDARY s e r v e m WORD_BOUNDARY