Dùnniècíkè
ㄉㄨㄣˋ ㄋㄧㄝˋ ㄘˊ ㄎㄜˋ
Simplified 顿涅茨克
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 頓涅茨克 and it comes back until you know it.