Modern historians and archeologists often turn to etymologists for assistance and occasionally get some advice from them, but in principle, it is word historians who need help.
现代历史学家和考古学家常常向词源学家求助，偶尔也从他们身上得到一些建议，但大多数情况下是研究单词的历史学家们需要帮助。
This is a reference book for those who know something about software requirements management and need a place to look up information occasionally. It is not a textbook on how to manage requirements.
标题的关键词是“jogger”，这是那些对软件需求管理有所了解且需要找个地方偶然得到一些信息的人的参考书，它并不是一本管理需求的教科书。
You occasionally need to have them installed to compile something you downloaded, but for the most part, it just works.
为了编译下载的一些东西，您有时候会需要安装它们，但是，在大部分情况下，其使用非常简单。
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