Simplify the following text for a Grade 7 native English-speaking person.
Original: ( A batter may also freely advance to first base if any part of the batter 's body or uniform is struck by a pitch before the batter either swings at it or it contacts the ground . )
Simplified: The pitch is always a strike , regardless of where it is , if the batter swings the bat and misses , so the batter must have good aim with the bat .