如果你能上到头部，那对于这篇文章来说，你可能太强大了。
If you can do the top of your head, you may be too advanced for this article.
文章开头部分介绍的便利方法使您可以在记录存储中写入和读取记录。
The convenience methods introduced at the beginning of the article will let you write and read records into the record store.
正如我在文章开头部分所讲述的，所有您需要的只是一些准则。
As I said at the start, all you need is a little discipline.
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