I wonder what they're doing
I wonder what they do
pro:sub v pro:int pro:sub part
i wonder what they're doing .
aɪ WORD_BOUNDARY w ʌ n d ə ɹ WORD_BOUNDARY w ʌ t WORD_BOUNDARY ð eɪ ə ɹ WORD_BOUNDARY d uː ɪ ŋ WORD_BOUNDARY
i WORD_BOUNDARY w o n d e r WORD_BOUNDARY w h a t WORD_BOUNDARY t h e y ' r e WORD_BOUNDARY d o i n g WORD_BOUNDARY