sync同步；同步信号；同步域；同步信号输出They swayed back and forth, more or less in sync with the music. 他们来回摇摆，基本上与音乐同步。很高兴第一时间为您解答，祝学习进步如有问题请及时追问，谢谢~~O(∩_∩)O
