1, the syllable combination of the name Du is very harmonious, the pronunciation of each word is very gentle, and the overall rhythm is smooth. The pronunciation of the words "Xin" and "Ran" is not harmonious together, and the tone and rhyme are not harmonious enough. Therefore, Du sounds good.
2. Du and Xiao give the impression that they are elegant and gentle, and they have a gentle and sincere feeling. The words "Xin" and "Ran" are not particularly distinctive or unique in commonly used Chinese characters, which makes people feel that names lack individuality and uniqueness. Therefore, Du sounds good.