这是最早的一代文献搜索引擎(比如ibm的STAIRS)中使用的方法。

This was the approach used in the first generation of bibliographic search engines, such as IBM's STAIRS.

youdao

给他们展示多种寻找答案的方法，比如：搜索引擎，百科全书，图书馆里特别的参考文献。

"Show them a variety of ways to find answers to questions: search engines, encyclopedias, specialized reference books at the library."

youdao

给他们展示多种寻找答案的方法，比如：搜索引擎，百科全书，图书馆里特别的参考文献。

Show them a variety of ways to find answers to questions: search engines, encyclopedias, specialized reference books at the library.

youdao