Okay kiddo, so precision bombing is like playing a game of darts. You know how you have to aim really carefully to hit the bullseye? Well, pilots who do precision bombing have to aim really carefully too, so that they can hit the target they want to hit.
But they can't just use their eyes to aim like we do with darts. They need special equipment that helps them see the target really clearly from far away. This equipment also helps them measure things like how far away the target is, how fast it's moving, and what direction it's going in.
After they have all of this information, they can use special bombs or missiles that are really accurate. These are called precision-guided bombs or missiles. They have a special guidance system that helps them go exactly where the pilot wants them to go, even if the target is moving around.
So, precision bombing is when a pilot uses all of this special equipment and special bombs or missiles to hit a target really accurately, like hitting the bullseye in a game of darts.