duìliúcéngdǐng
ㄉㄨㄟˋ ㄌㄧㄡˊ ㄘㄥˊ ㄉㄧㄥˇ
Simplified 对流层顶
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 對流層頂 and it comes back until you know it.