Each part of the solution is internally different, so lets go through it in detail from left to right.

此解决方案的每个部分在内部都是不同的，所以让我们从左至右地详细分析一下。

youdao

This is a powerful technique that lets you easily copy all or part of an existing table into a second table.

这是一种功能强大的技术，允许您很容易地将现有表的全部或部分复制到第二个表中。

youdao

Focusing on the premium part of freemium first lets you really learn about your unique value proposition - the stuff that will get you paid.

先专注于你的增值模式的费用部分，会让你真正认识到你独特价值部分——哪些别人会付钱给你的部分。

youdao

And I can obviously do the other direction which is I can say skip to index 2 and all the remaining pieces. This lets me slice out, if you like, the front part or back part or a middle part of the tuple as I go along.

很明显我可以从索引2开始切片,所有剩下的元素，这可以让我2,如果你喜欢我这么说的话,取得元素的前面的或者后面的,或者中间的部分。

麻省理工公开课 - 计算机科学及编程导论课程节选

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