Cello, Violin and piano play the background music of sadness and loneliness, as if walking alone in the bustling city, which is also the mood of many wanderers at night
大提琴、小提琴、钢琴表现渲染出悲伤、孤独气氛的背景音乐，仿佛独自一人走在繁华的都市中的寂寥，这也是很多游子夜晚时的心境