牠 们 吃 过 吗
ta1 men2 chi1 guo4 ma
pro:per n v asp sfp
牠 们 吃 过 吗 ?
tʰ a˥ WORD_BOUNDARY m ə˧˥ n WORD_BOUNDARY ʈʂʰ ɻ̩˥ WORD_BOUNDARY k w o˥˩ WORD_BOUNDARY m a WORD_BOUNDARY 
牠 WORD_BOUNDARY 们 WORD_BOUNDARY 吃 WORD_BOUNDARY 过 WORD_BOUNDARY 吗 WORD_BOUNDARY