ac·ces·sionBrE/ækˈseʃn/NAmE/ækˈseʃn/noun[U]~ (tosth)theactofbecomingarulerofacountry(国家统治者的)就职,就任;(君主、帝王等的)登基,即位◆theaccessionofQueenVictoriatothethrone维多利亚女王即位➡ see alsoaccede[U]~ (tosth)theactofbecomingpartofaninternationalorganization正式加入(国际组织)◆theaccessionofnewmemberstatestotheEU新成员国正式加入欧盟◆thenewaccessionstatesoftheEU正式加入欧盟的新成员国[C](specialist) athingthatisaddedtoacollectionofobjects, paintings, etc. inalibraryormuseum(图书馆、博物馆的)新增项目,新增藏品,新增藏书