您要查找的是不是：
- This textbook has twenty units. 这本课本有二十单元。
- This textbook has twenty lessons. 这课本有二十课。
- This textbook has twenty lessons 这课本有二十课。
- This textbook has had adoptions in many countries. 这本教科书已被很多国家采用.
- Long passages in this textbook have been lifted from other authors. 此教科书中有几大段是剽窃其他作者的。
- Several long passages in this textbook have been cribed from other authors. 此教科书中有几大段是剽窃其它作者的。
- Long passages in this textbook' have been lifted from other authors. 此教科书中几段长的文字是剽窃其他作者的。
- Our textbook has many figures to help explain the lessons. 我们的教科书有许多图表帮助解释课文。
- By the end od this term we shall have learned this textbook. 到本学期末我们将能学完了这本书。
- By the end of this term we shall have learned this textbook. 到本学期末我们就能学完这本书了。
- This textbook is not exactly inspiring. 这本教科书未必有多大启发性。
- This textbook contain 16 lessons. 这本教科书共有十六课。
- This textbook contains 25 lessons. 这本教科书共有25课。
- I still have twenty essays to mark. 我还有20份论文要评分数。
- This textbook be less difficult . 这册课本较不困难。
- He has twenty head of cattle on the farm. 他在农场养了20头牛。
- This textbook is less difficult . 这册课本比较容易。
- The hunter has twenty more hounds. 那猎人有二十几条猎狗。
- Isn' t this textbook beginning to date ? 这本教材不是已渐渐陈旧了吗?
- This textbook is less difficult. 这册课本较不困难。
