see the back part goes up and down
see the back part goes up and down ?
s iː WORD_BOUNDARY ð ə WORD_BOUNDARY b æ k WORD_BOUNDARY p ɑː ɹ t WORD_BOUNDARY ɡ oʊ z WORD_BOUNDARY ʌ p WORD_BOUNDARY æ n d WORD_BOUNDARY d aʊ n WORD_BOUNDARY
s e e WORD_BOUNDARY t h e WORD_BOUNDARY b a c k WORD_BOUNDARY p a r t WORD_BOUNDARY g o e s WORD_BOUNDARY u p WORD_BOUNDARY a n d WORD_BOUNDARY d o w n WORD_BOUNDARY