A grisly period of internecine war and cannibalism seems to have followed. 一段可怕的內戰時期和自相殘殺的時期似乎接踵而至。
Archeological evidence points to a multitude of factors, including internecine warfare, the loss of trade routes, drought, and disease. 考古上的證據有很多種，包括內戰，貿易途徑的消失，乾旱和疾病。
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