that's hard to do
that hard to do
pro:dem adv inf v
that's hard to do .
ð æ t s WORD_BOUNDARY h ɑː ɹ d WORD_BOUNDARY t ə WORD_BOUNDARY d uː WORD_BOUNDARY
t h a t ' s WORD_BOUNDARY h a r d WORD_BOUNDARY t o WORD_BOUNDARY d o WORD_BOUNDARY