n.

a process of increasing by addition (as to a collection or group)

"the art collection grew through accession"

(civil law) the right to all of that which your property produces whether by growth or improvement

something added to what you already have

"the librarian shelved the new accessions"

同義詞：addition

agreeing with or consenting to (often unwillingly)

"accession to such demands would set a dangerous precedent"

同義詞：assenting

the right to enter

同義詞：entreeaccessadmittance

the act of attaining or gaining access to a new office or right or position (especially the throne)

"Elizabeth's accession in 1558"

同義詞：rise to power

1. The museum announced several new accessions to its collection this year.
   博物館今年宣布了幾件新加入的藏品。
2. The accession of the new leader marked a significant change in the country's policies.
   新領(lǐng)導(dǎo)的上任標志著該國政策的重大變化。