这 是 楼梯 呀
zhe4 shi4 lou2ti1 ya
pro:dem v:cop n sfp
这 是 楼梯 呀 .
ʈʂ ɤ˥˩ WORD_BOUNDARY ʂ ɻ̩˥˩ WORD_BOUNDARY l ou̯˧˥ tʰ i˥ WORD_BOUNDARY j a WORD_BOUNDARY 
这 WORD_BOUNDARY 是 WORD_BOUNDARY 楼 梯 WORD_BOUNDARY 呀 WORD_BOUNDARY