| 单词 | accession |
| 释义 | accession [ək'seʃ.ən] noun uncountable formal ■the time when someone starts a position of authority, especially king or queen 就职，登基 •1926 was the year of Emperor Hirohito's accession to the throne ■the time when a country officially joins a group of countries or signs an agreement 正式加入（国际组织），签署（条约）•Poland's accession to the EU波兰正式加入欧盟 |
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