lei4 呢 便 反
lei4 ne1 bin6 faan2
v sfp n v
lei4 呢 便 反 .
l ei ˨˩ WORD_BOUNDARY n ɛː ˥ WORD_BOUNDARY p iː n ˨ WORD_BOUNDARY f aː n ˧˥ WORD_BOUNDARY
l e i 4 WORD_BOUNDARY 呢 WORD_BOUNDARY 便 WORD_BOUNDARY 反 WORD_BOUNDARY