哈利·波特书系列世界销量超过四亿册。

The Harry Potter books have sold more than 400m copies worldwide.

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因为这一章是整个书系列的关键，我们对它的探索会比其他章节详细一些。

Since it is so pivotal to the series, we'll explore this chapter in somewhat more detail than most of the others.

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汤姆·瑞多的魔杖是书系列里迄今为止唯一的紫杉木魔杖（魔法石，第5章）。

Tom Riddle's wand is the only wand in the series to date known to be made of yew (SS5).

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My book is published in the series of gender studies, the York University Studies on Women and Men.

我的书是归在性别研究系列中出版的，就是《约克大学性别研究》期刊。

普林斯顿公开课 - 人性课程节选