no expression on his face
no expression on his face .
n oʊ WORD_BOUNDARY ɛ k s p ɹ ɛ ʃ ə n WORD_BOUNDARY ɔ n WORD_BOUNDARY h ɪ z WORD_BOUNDARY f eɪ s WORD_BOUNDARY
n o WORD_BOUNDARY e x p r e s s i o n WORD_BOUNDARY o n WORD_BOUNDARY h i s WORD_BOUNDARY f a c e WORD_BOUNDARY