编写一本教科书，这似乎是最好的参考书，因为它是这个主题的标准，而且覆盖了高中生和大学生所学的大多美国历史课。

This seems to be the best reference on which to build a textbook, since it is a standard on the subject and covers what most U.S. history students study in high school and college.

youdao

编写一本教科书，这似乎是最好的参考书，因为它是这个主题的标准，而且覆盖了高中生和大学生所学的大多美国历史课。

This seems to be the best reference on which to build a textbook, since it is a standard on the subject and covers what most U. S. history students study in high school and college.

youdao

编写一本教科书，这似乎是最好的参考书，因为它是这个主题的标准，而且覆盖了高中生和大学生所学的大多美国历史课。

This seems to be the best reference on which to build a textbook, since it is a standard on the subject and covers what most U. S. history students study in high school and college.

youdao