it强调句型 正是由于这本书提出了如此多的难题,才费了很长时间出版 英语翻译

正是由于这本书提出了如此多的难题,才费了很长时间出版
It is because this book presented so many difficult problems that it takes long time to come out / publish.
强调部分是 because this book presented so many difficult problems 由于这本书提出了如此多的难题
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