好，那么第二步，这是关键的部分。

OK, so two, that's the crucial part.

youdao

关键的部分是这个while循环。

The key part of that is that WHILE loop.

youdao

这些模型中最关键的部分是用户集。

The most critical of these models are sets of user personas.

youdao

Now if you look at the structure of this book, it has sections that say Key Points and Key Terms.

如果你看了整本书的结构,就会看到有个关键点和关键词的部分

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The blood of the animal, the blood of the sacrifice is the key to the whole ritual.

动物的血，祭品的血是整个仪式中最关键的部分。

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OK, so two, that's the crucial part.

好，那么第二步，这是关键的部分。

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