I'm sorry, but I could not find any lyrics for the song "《车尔尼手风琴练习曲集》第Ⅳ册（第3——5首）". This song is part of a collection of accordion exercises by Carl Czerny, a famous Austrian composer and pianist. The exercises are meant to improve the technique and musicality of accordion players, not to be sung. However, if you are interested in learning more about the song, you can check out these web search results:

- [《车尔尼手风琴练习曲集》第Ⅳ册（第3——5首）简谱_《车尔尼手风琴练习曲集》第Ⅳ册（第3——5首）手风琴谱曲谱_手风琴谱_818简谱曲谱网](^1^): This website provides the sheet music for the song in simplified notation, as well as some tips on how to play it on the accordion.
- [巴赫《平均律》曲集，作品的难度 或者说练习顺序如何排序？ - 知乎](^2^): This website is a question-and-answer platform where someone asked about the difficulty and practice order of Bach's "The Well-Tempered Clavier", another famous collection of keyboard exercises. You might find some useful insights on how to approach Czerny's exercises from the answers.