求翻译：只是，这书的价钱真是一买一个样，不知道什么时候是降的最低。并且三套书中有重复内容，既然是系列，怎么会有重复的内容呢？我挺纳闷的。知道重复的话，就不买一整套是什么意思？

Just the price of this book is really a buy a kind of, I do not know when to drop the lowest. And three sets of duplicate content in the book, since the series, how have duplicate content? I am very puzzled. Know repeat, do not buy a set of

It is only the price, this book is really a buy one, I do not know at what time is the minimum. And there are 3 sets in the book, and since it is duplicate content, how can you be a series of duplicate content? I was really wondering. Know that repeat, they do not buy a package

Only is, as soon as this book price really is buys a type, did not know when is falls lowly.And in three sets of books has the repetition content, since is the series, how can have the repetition content? I very wonder.Knew the repetition the speech, does not buy the one whole set

But the price for this book was bought the same, does not know when to drop the lowest. And three sets of duplicate content in the book, since it is a series, why are there duplicate content? I'm wondering. Know repeat, do not buy a set of