Roots of Happiness 歌词
| 歌曲 | Roots of Happiness |
| 歌手 | Focus 100 |
| 专辑 | Top 100 Study - Mind Awakening, Beautiful Music for Studying, Exam Preparation & Concentration |
YouTube搜索结果 (转至YouTube)
| 歌曲 | Roots of Happiness |
| 歌手 | Focus 100 |
| 专辑 | Top 100 Study - Mind Awakening, Beautiful Music for Studying, Exam Preparation & Concentration |