英语语法分析

Just how music can fuel exercise - when it becomes what is known as an ergogenic aid - is a recent field of scientific study which experts have been exploring for two decades.

当音乐成为众所周知的增进机能的辅助方法之后，音乐如何激发运动成为了科学研究的一个新的领域，专家已经在这方面进行了20年的研究了。