当我开始这个分四部分的介绍 WSFL 的系列时，我的目的很简单：使您对 WSFL 有一个基本了解，知道它能做什么，如何使用它，以及它有什么优势。
When I began this series of four articles introducing the WSFL, my goals were simple: to provide you with a basic understanding of what WSFL is, what it does, how to use it, and what it's good for.
她使一部情节简单的小说充满了复杂的主题和情感。
She makes a simple story resonate with complex themes and emotions.
罗森先生的书不是一部关于各种发明的历史，而是对于发明本身——即拿现有的机制做实验并使之改善的过程——的研究。
Rather than a history of inventions, Mr Rosen’s book is a study of invention itself, the process of tinkering with an existing mechanism to make it better.
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