tā / shì tú / pò xié / zhèng rén / gǎi biàn / zhèng cí / zuì zhōng / shòu dào le / fǎ lǜ / zhì cái他试图迫胁证人改变证词,最终受到了法律制裁。He tried to coerce the witness into changing their testimony and was eventually punished by law.