求翻译：在某些方面我真的很担心，但是，我爱写这部书，它对我是个震惊，一个难以言喻的震惊，尽管我知道过去了15年，我知道这系列书即将完结，但它对我仍然是个震惊。相反，我也很有成就感是什么意思？

In some ways I am really worried, but I love to write this book, I was shocked by it, an unspeakable shock, even though I know that 15 years later, I know that this series of books coming to an end, but it I am still a shock. On the contrary, I have great sense of accomplishment

In some respects, but I am really very worried, I wrote this book, it was a shock to me, an unspeakable horror, although I know that over the last 15 years, I know that this book series is about to come to an end, but it was I was still a shock. In contrast, I also have a sense of achievement

I really very much worried in certain aspects, but, I like writing this book, it to me is a shock, explains with difficulty shock, although I knew 15 years, I had known this series book soon terminates, but it to me still was a shock.On the contrary, I also very much have the sense of achievement

Aspects I really worry but I love wrote this book was a shocking to me it, one can't define shock, despite my known 15 years I knew our book is nearing the end but it I still remains a shock. Contrary I also very satisfying

In some ways I am really worried, but I love to write this book, I was shocked by it, an unspeakable shock, even though I know that 15 years later, I know that this series of books coming to an end, but it I am still a shock. On the contrary, I have great sense of accomplishment