这名登山者在坠落事故后出现多发性创伤，涉及脑部和多处骨折。

The climber developed ___polytrauma after the fall, involving brain injury and multiple fractures.

车祸受害者经常遭受多发性创伤，可能涉及头部、胸部和四肢的损伤。

Car accident victims often suffer from ___polytrauma, which may involve injuries to the head, chest, and limbs.