qínqínkěnkěn
ㄑㄧㄣˊ ㄑㄧㄣˊ ㄎㄣˇ ㄎㄣˇ
Simplified 勤勤恳恳
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 勤勤懇懇 and it comes back until you know it.