← Thread:Talk:Translation Workflow/Language-selector under Toolbox in sidebar/reply (4)
Change Preference need an account and login in, but some visitors (guest) don't have (especially the person who visits this site first time).
another method is add this function to Translation Extension, for example, the extension not only redirect browser to /zh-cn page, but also change wiki' interface language（system messages) to zh-CN.
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