let's go down stairs
let go down stair
v v adv n
let's go down stairs !
l ɛ t s WORD_BOUNDARY ɡ oʊ WORD_BOUNDARY d aʊ n WORD_BOUNDARY s t ɛ ɹ z WORD_BOUNDARY
l e t ' s WORD_BOUNDARY g o WORD_BOUNDARY d o w n WORD_BOUNDARY s t a i r s WORD_BOUNDARY