这本书的十五章都不是很长，每一章大概需要一晚上的时间，你可以和孩子们一起在电脑前共同完成。
None of the book's fifteen chapters is long. You can probably spend one evening per chapter in front of your computer with the kids.
这本书的十五章都不是很长，每一章大概需要一晚上的时间，你可以和孩子们一起在电脑前共同完成。
None of the book's fifteen chapters is long. You can probably spend one evening per chapter in front of your computer with the kids.
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