Halloway and Gehtland want their readers to learn that there are multiple ways to solve a problem with several different tools.

Halloway和Gehtland想让读者了解，有许多用不同工具解决一个问题的方法。

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Clojure Protocols: Take a look at slides presented by Stuart Halloway at the International Software Development Conference 2010.

Clojure协议：查看在2010年国际软件开发会议中来自Stuart Halloway的幻灯片。

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