NSHashTable&NSMapTable

NSHashTable&NSMapTable

本文的单词摘自NSHiper文档，记录自己看文档时遇到的生词。

1. workhorse
   adj. 工作重的；吃苦耐劳的
   美 ['wə:khɔ:s]
   eg: NSArray are the workhorse collection classes of Foundation.
   (这里可翻译为主要的)

2. general-purpose
   adj. 多用途的；一般用途的
   英 ['dʒenərəl'pə:pəs]
   eg: use a more general-purpose solution.

3. breaking assumption
   n. 打破假设，不符合预期
   eg: For NSSet and NSDictionary, the breaking assumption was in the memory behavior when storing objects in the collection.