More complex mapping discovery USES externally purchased thesauruses to find synonyms or even data samples from the data source to validate possible mappings.

大多数复杂的映射发现是使用外部购买的辞典来从数据源中查找同义词或者数据样本，从而验证映射的可能性。

Visit the library reference areas or stop by the Writing Center to browse various dictionaries, thesauruses (or other guide books and reference texts), encyclopedias or surf their online counterparts.

到图书馆的参考书区，或者到我们协作中心来，浏览各种字典、辞典(或者其它指导书、参考书)、百科全书或者寻找它们相应的网络版。