[مغلق] Exporting / Importing multilingual website posts

I am recreating a website from scratch. The old website is online and I am working on the new version on MAMP. However I want to export/import the blog posts. The old website is set to have Greek as primary language and English as secondary.
The new website will have instead English as primary language and Greek as secondary. I did create an export file with WP All Export from the old website and use WP All import from the new one, following your suggestions (in both websites there's also installed WPML Export and Import).

However after the import, in my new site the posts in Greek result as being primary language. That is: when I am in the default admin language section, I can modify directly and English post, but I must use the trasnlator manager like this post is a translation (i.e. in the same order of teh old website).

Could you please give me some advice? Thanks