If you want to learn about American history, the Smithsonian is the place to go.

VOA: special.2010.07.09

and then we learn about photographers that live in Los Angeles and total history in photographs.

然后我们了解住在洛杉矶的摄影师和摄影的历史。

群集课程 - SpeakingMax英语口语达人

Visitors to the museum can learn about President Lincoln's important role in American history.

VOA: special.2009.07.24

Genealogy can help people learn more about history.

VOA: special.2010.06.28