Some historians believe that the long- term exposure to lead was a major health risk for the Romans.

一些历史学家认为，长期接触铅极大地威胁着罗马人的健康。

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Some historians believe that the long- term exposure to lead was a major health risk for the Romans.

一些历史学家认为，长期接触铅极大地威胁着罗马人的健康。

youdao