let dung tra la la
let dung tra la la .
l ə t WORD_BOUNDARY d u ŋ WORD_BOUNDARY t r a WORD_BOUNDARY l a WORD_BOUNDARY l a WORD_BOUNDARY
l e t WORD_BOUNDARY d u n g WORD_BOUNDARY t r a WORD_BOUNDARY l a WORD_BOUNDARY l a WORD_BOUNDARY . WORD_BOUNDARY