shuàitǔ-tóngqìng
[celebrate with all people] 犹言普天同庆
臣某言:伏奉七月十三日制书,大赦天下,跪捧宣布,蹈舞欢呼,自天降休,率土同庆。——唐·白居易《贺上尊号后大赦天下表》