pose a challenge

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Origins to Collapse of an Ancient Civilization | Rise and Fall of the Maya MEGA Episode | Nat Geo

NARRATOR: Escalating problems posed a challenge

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poser un défi

Créer un problème difficile ou une situation exigeante qui nécessite une réponse.

Origins to Collapse of an Ancient Civilization | Rise and Fall of the Maya MEGA Episode | Nat Geo

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