1. The expression of words is more appropriate: Cantonese and Mandarin are both Chinese, but there are differences in grammar, words and expression. Sometimes Cantonese lyrics can convey the emotion or artistic conception of songs with more appropriate words or expressions, while Mandarin lyrics can't achieve the same effect.
2. Conform to the rhythm of the song: Cantonese and Mandarin are also different in tone and rhythm. The lyrics of some Cantonese songs are more in tune with the melody of the songs and sound more harmonious, while the lyrics of Putonghua may not completely match the rhythm and rhythm of the songs.
3. Cultural background differences: Cantonese and Mandarin have different cultural backgrounds, so when expressing certain themes or emotions, Cantonese lyrics may be closer to or more accurate in expressing the connotation of the song, while Mandarin lyrics may have some cultural differences or improper expression.
Of course, this does not mean that all Cantonese songs and lyrics are better than Mandarin lyrics, and the specific situation needs to be judged according to specific songs and lyrics.