On this piece of the ancient Mayan kingdom, the University of Pennsylvania is engaged in excavation and research on the Mayan ruins. The University's researchers have already put out more than 40 papers on their work.
在這塊古馬雅王國的土地上，美國賓州大學正從事著馬雅遺址的挖掘與研究，做出了四十多份的研究報告。