1. 附加物：annexation 合并 | annexe 附加物 | annexment 附加物

2. 附件：annex 附件 | annexe 附件 | annihilate 消灭

3. annexe

3. 附属建筑：annexationist 合并论者 | annexe 附属建筑 | annexe 别馆

4. 别馆：annexe 附属建筑 | annexe 别馆 | annihilate 歼

1. 附属建筑物;侧楼;配楼
    An annexe is a building which is joined to or is next to a larger main building.

    e.g. ...setting up a museum in an annexe to the theatre.
           在剧院的侧楼中建一个博物馆

2. 附件；附录
    An annexe to a document is a section added to it at the end.

911查询·英语单词

    e.g. The Annex lists and discusses eight titles.
           附录列举并讨论了8本书。

1. an addition that extends a main building

    Synonym: annexextensionwing