A further quarter book short breaks only two to four weeks ahead, while a third (35%) book one to three months in advance.
另外有四分之一的人仅提早两至四周预订短期度假，而三分之一(35%)的人提早一至三个月预订。
These content is in our four revision books: text-book, exercise-book, and our other two study materials.
考试内容就在我们四本书里：课本、练习和其它两本学习材料。
These content is in our four revision books: text-book, exercise-book, and our other two study materials.
考试内容就在我们四本书里：课本、练习和其它两本学习材料。
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