accusing them of defaming his reputation -> assusing them for defamation
“defame”本来就是damage someone's reputation的意思

basic right -> basic rights

plainly normal -> “normal”感觉不够强，也许compleleted justified？

express his opinion -> express his opinions

judges of Jianghan -> the judge of ...

We believe that decision -> We believe that the decision ...

upheld -> sustained

“first trial”和“final trial”有点“中国特色”。建议修改。也许可以改成用“District Court”和“Court of Appeal”。