How can mobile phone short messages be backed up regularly to be preserved for a long time?

1. Try to save it as a short message template;

Since it's so precious, I think it's not bad to put some effort into the whole collection of love memories with my girlfriend-extract or print the contents of the short message on a beautiful piece of paper, and then post it in a beautiful diary. If you like painting, you can decorate it again ... hehe.