annex
/əˈneks; ə`nɛks/ v
1 [Tn] take possession of (a territory, etc) 兼并, 并吞（领土等）
annex a neighbouring state 兼并邻国.
2 [Tn, Tn.pr]
~ sth (to sth) add or join sth to a larger thing 附加; 添加
A new wing has been annexed to the hospital. 医院已经增建了一个新侧楼.