library [ libr = book 书；-ary→]n .① a collection of books 藏书，丛书 / Good as it is to inherit a library, it is better to collect one. 继承一批藏书固然好，自己收集却更妙。② a place where a collection of books is kept 图书馆，藏书室 / Reference books may be read only in the reference library. 参考书室的书只供在内部查阅。

boundary [bound n. 界限；-ary=>“a connection of bounds 界限相连 ”→]n. a limiting thing or line; border 分界线；边界 / Lake Superior forms part of the boundary between Canada and the United States. 苏必利尔湖成为加拿大与美国的部分边界线。

secretary [secret n. 秘密；-ary=>“a person connected with secrets参与秘密的人”→]n. a person who deals with letters，records, etc. for another 秘书 / He is a private secretary to the prime minister. 他是首相的私人秘书。

下面我们接着介绍充当形容词后缀的情况。

honorary [ honor n. 荣誉；-ary=>“of an honor 荣誉的”→] given or done as an honor 荣誉的，光荣的 / The university will award honorary degrees to three prominent scientists. 该大学将授荣誉学位给三位杰出的科学家。