飞 来 飞 去
fei1 lai2 fei1 qu4
v:resc v:dirc v:resc v:dirc
飞 来 飞 去 .
f ei̯˥ WORD_BOUNDARY l ai̯˧˥ WORD_BOUNDARY f ei̯˥ WORD_BOUNDARY tɕʰ y˥˩ WORD_BOUNDARY 
飞 WORD_BOUNDARY 来 WORD_BOUNDARY 飞 WORD_BOUNDARY 去 WORD_BOUNDARY