穿 鈕 鈕 aa3
cyun1 nau2 nau2 aa3
v n n fil
穿 鈕 鈕 aa3 .
tsʰ y˥ n WORD_BOUNDARY n ɐu˧˥ WORD_BOUNDARY n ɐu˧˥ WORD_BOUNDARY a̞˧ WORD_BOUNDARY
穿 WORD_BOUNDARY 鈕 WORD_BOUNDARY 鈕 WORD_BOUNDARY a a 3 WORD_BOUNDARY . WORD_BOUNDARY