Complex sentence: Meanwhile, Huo Yan tries to find ways to cure his younger brother's sickness.He soon found out that his brother will need a heart donation.Huo Yan want to save his brother's life, so he donates half of his heart to Huo Da.
Split into simpler sentences: Meanwhile, Huo Yan tries to find ways to cure his younger brother's sickness.He soon finds out that his brother will need a heart donation. As Huo Yan wanted to save his brother's life, he decided to donate half of his heart to Huo Da.