拿 笔 干 什么
na2 bi3 gan4 shen2me
v n v pro:wh
拿 笔 干 什么 ?
n a˧˥ WORD_BOUNDARY p i˧˩˧ WORD_BOUNDARY k a˥˩ n WORD_BOUNDARY ʂ ə˧˥ n m ɤ WORD_BOUNDARY 
拿 WORD_BOUNDARY 笔 WORD_BOUNDARY 干 WORD_BOUNDARY 什 么 WORD_BOUNDARY