shǒuhéngdìnglǜ
ㄕㄡˇ ㄏㄥˊ ㄉㄧㄥˋ ㄌㄩˋ
Simplified 守恒定律
Taivo → Settings → Partner inbox → Make the link. It stays in this browser.
Keep 守恆定律 and it comes back until you know it.