Complex sentence: Dry firing a compound bow may cause the cracking of the limbs of the bow, or may completely knock the string off causing possible injury to the shooter, or it may do nothing at all depending on the draw weight, cam type, and bow type.
Split into simpler sentences: Dry firing a compound bow may cause the cracking of the limbs of the bow, or may completely knock the string off causing possible injury to the shooter, or it may do nothing at all. It all depends on the draw weight, cam type, and bow type.