20th anniversary of Macao's return 20th anniversary of the selection 20th anniversary of the action 20th anniver sary of the selection 30th anniversary of chinare 莲花盛开：庆祝澳门回归二十周年：20th anniversary of Macao's return 50th anniversary old master Q 15th anniversary of TUYA culture 100th anniversary of Chinese Opera 100th anniversary of Chinese opera