Complex sentence: Tiger Chen was born on 3 March 1975 in Chengdu, Sichuan, where he studied the Chinese martial arts, by age 18, he enrolled into Sichuan Wushu Team.
Split into simpler sentences: Tiger Chen was born on 3 March 1975 in Chengdu, Sichuan, where he studied the Chinese martial arts. By age 18, he enrolled into Sichuan Wushu Team.