niǔkòu
Mandarin
Romanization
niǔkòu
(
Zhuyin
ㄋㄧㄡˇ ㄎㄡˋ
)
Hanyu Pinyin
reading of
紐扣
/
纽扣
Hanyu Pinyin
reading of
鈕扣
/
钮扣