yǒngjiǔdòngtǔ
ㄩㄥˇ ㄐㄧㄡˇ ㄉㄨㄥˋ ㄊㄨˇ
Simplified 永久冻土
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 永久凍土 and it comes back until you know it.