廿 么 二 十 呀
nian4 me er4 shi2 ya
num sfp num num sfp
廿 么 二 十 呀 !
n j ɛ˥˩ n WORD_BOUNDARY m ɤ WORD_BOUNDARY ɚ˥˩ WORD_BOUNDARY ʂ ɻ̩˧˥ WORD_BOUNDARY j a WORD_BOUNDARY 
廿 WORD_BOUNDARY 么 WORD_BOUNDARY 二 WORD_BOUNDARY 十 WORD_BOUNDARY 呀 WORD_BOUNDARY