Complex sentence: Dishevelled and restless, Chimène enters followed by Elvire and her other ladies, and despairs about the terrible choice she has been forced to make, but she strongly rejects the idea that Rodrigue can be defeated in combat.
Split into simpler sentences: Dishevelled and restless, Chimène enters followed by Elvire and her other ladies. She is in despair about the terrible choice she has been forced to make, but she strongly believes Rodrigue can never be defeated in combat.