妈妈 怎么 还 没 回来 呢
ma1 zen3me hai2 mei2 hui2lai2 ne
n:relat adv:wh adv adv v sfp
妈妈 怎么 还 没 回来 呢 ?
m a˥ WORD_BOUNDARY ts ə˧˩˧ n m ɤ WORD_BOUNDARY x ai̯˧˥ WORD_BOUNDARY m ei̯˧˥ WORD_BOUNDARY x w ei̯˧˥ l ai̯˧˥ WORD_BOUNDARY n ɤ WORD_BOUNDARY 
妈 妈 WORD_BOUNDARY 怎 么 WORD_BOUNDARY 还 WORD_BOUNDARY 没 WORD_BOUNDARY 回 来 WORD_BOUNDARY 呢 WORD_BOUNDARY