Problem: The client asked if there is a way to duplicate content from a non-default language, specifically wanting to duplicate city names from Japanese to Chinese translations. Solution: We informed the client that it is not possible to duplicate taxonomies from one secondary language to another directly using WPML. If you're experiencing a similar issue, we recommend exploring alternative methods such as manual translation or using professional translation services.
Please note that this solution might be outdated or not applicable to your specific case. We highly recommend checking related known issues at https://wpml.org/known-issues/, verifying the version of the permanent fix, and confirming that you have installed the latest versions of themes and plugins. If this does not resolve your issue, please open a new support ticket.