为了理解历史背景,研究人员常常查阅那个时代的一手资料。

To understand the historical context, researchers often refer to primary sources from that era.

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To understand the historical context, researchers often refer to primary sources from that era.

refer 是动词,意思是"查阅、参考",指为了获取信息而查看某资料。 to 在这里是介词,与 refer 搭配使用,表示查阅的对象。 refer to 这个短语的意思是"查阅、参考(某资料)"。

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