蹭 来 蹭 去
ceng4 lai2 ceng4 qu4
v v:dirc v v:dirc
蹭 来 蹭 去 .
tsʰ ə˥˩ ŋ WORD_BOUNDARY l ai̯˧˥ WORD_BOUNDARY tsʰ ə˥˩ ŋ WORD_BOUNDARY tɕʰ y˥˩ WORD_BOUNDARY 
蹭 WORD_BOUNDARY 来 WORD_BOUNDARY 蹭 WORD_BOUNDARY 去 WORD_BOUNDARY