Simplify the following text for a Grade 10 native English-speaking person.
Original: Kim did not compete at the 2008 Korean Nationals and withdrew from the 2008 Four Continents Figure Skating Championships a week before the event due to a hip injury .
Simplified: Kim did not attend the 2007 â `` 2008 South Korean Nationals and also did not go to the 2008 Four Continents Figure Skating Championships because of a hip injury .