This day, 15 January, in 1988, Vice Foreign Minister Zhou Nan and Portuguese Ambassador to China Octavio Neto Valerio exchanged letters of approval in Beijing for the Sino-Portuguese Joint Declaration on Macau, laying a legal foundation for Macau’s return to China, under which the enclave would enjoy a great degree of autonomy in all but foreign affairs and defence.
1988年1月15日的这一天，周南副外长和葡萄牙驻华大使奥克塔维奥·内托·瓦莱里奥在北京交换了《中葡关于澳门的联合声明》的批准信，为澳门回归中国奠定了法律基础，根据该宣言，该飞地将在外交事务和国防之外的所有方面享有高度的自治权。
