杭州交通信息网单程机票可以出境吗:用英语解释rock music和起源（200字内）
来源：百度文库 编辑：杭州交通信息网 时间：2024/05/09 09:19:25
Rock and roll (also spelled rock 'n' roll, especially in its first decade), also called rock, is a form of popular music, usually featuring vocals (often with vocal harmony), electric guitars and a strong back beat; other instruments, such as the saxophone, are common in some styles. As a cultural phenomenon, rock's social impact on the world is likely unparalleled by any other kind of music. ...