accession
1.N-UNCOUNT 不可数名词（君主、帝王的）登基，即位；（国家统治者的）就职，就任 Accession is the act of taking up a position as the ruler of a country.
【搭配模式】：with poss
【STYLE标签】：FORMAL 正式
...the 50th anniversary of the Queen's accession to the throne.
女王登基50周年庆典
2.N-UNCOUNT 不可数名词正式加入 A country's accession to a group of countries or to an association is its joining that group of countries or association.
【搭配模式】：oft with poss
【STYLE标签】：FORMAL 正式
...Namibia's accession to the Lome convention.
纳米比亚正式加入《洛美协定》
...a ballot over the issue of Kashmir's accession to India.
对克什米尔是否并入印度的表决
