Complex sentence: However, because of huge social pressure, the concession areas sentence them to life in the first trial and after then, they were forced to change to sentence Zhang Binglin to 3 years and Zou Rong 2 years.
Split into simpler sentences: However, because of huge social pressure, the concession areas sentenced them to life in the first trial. Afterwards they were forced to change the sentence of Zhang Binglin to 3 years and Zou Rong 2 years.