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a math textbook

双语例句

  1. He was reading a math textbook in the library.
    他在图书馆看一本数学教科书。
  2. He was reading a math textbook in the dormitory.
    他正在宿舍里读一本数学教科书。
  3. The textbook has an appendix, which is a reasonable measure of how much math you should know.
    教科书有一个附录，它是你应该掌握多少数学知识的合理衡量。