Dùsàiěrduōfū
ㄉㄨˋ ㄙㄞˋ ㄦˇ ㄉㄨㄛ ㄈㄨ
Simplified 杜塞尔多夫
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 杜塞爾多夫 and it comes back until you know it.