huíxuányúdì
ㄏㄨㄟˊ ㄒㄩㄢˊ ㄩˊ ㄉㄧˋ
Simplified 回旋余地
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 迴旋餘地 and it comes back until you know it.