The appeal court found the facts in the original judgment unclear and decided to send the case back for retrial.
Tips
mistakes
重 is chóng "again" here, as in 重新, not zhòng "heavy".
usage
One of the three outcomes of an appeal: 维持原判 "uphold the verdict", 改判 "change it", or 发回重审 "send it back". The lower court then hears the case again with a new panel of judges.