chord line

• 翼弦线,弦线,弦

chord line的用法和样例：

例句

1. He is replacing the broken chord of his violin.
   他正在更换小提琴上那根断了的弦。
2. A smile is a curved line that sets things straight.
   笑容是一条曲线却能使事情平直如弦。