1. 公弦：combination 组合 | common chord 公弦 | common denominator 同分母;公分母
2. 普通和弦：音差 Comma | 普通和弦 Common chord | 四四拍子 Common meansure
3. 公弦(数学)：共軸 common axis | 公弦(數學) common chord | 公分母(數學) common denominator
4. 公弦Btu中国学习动力网：combination 组合Btu中国学习动力网 | common chord 公弦Btu中国学习动力网 | common denominator 同分母;公分母Btu中国学习动力网
noun
1. a three-note major or minor chord
a note and its third and fifth tones
Synonym: triad