Suppose you're taking a United States History class, and Professor College asks you to write a paper on this topic.

假设你选择了美国历史这样的课程，教授希望你以下列选题为内容写一篇论文。

youdao

Suppose you're taking a United States History class, and Professor College asks you to write a paper on this topic.

假设你选择了美国历史这样的课程，教授希望你以下列选题为内容写一篇论文。

youdao