案件审判已结束 是 The trial of the case has finished 还是The trial on the case has finished

语法正确的句子是 The trial of the case has finished
of 是正确的介词：the trial of sth.
但是
句子的 of the case 是冗余的,
一般人会说
The trial has finished
除非这个所谓 case 是指定的一个case .
如果是指定的一个 case （假设是 XXX 公司诽谤案,XXX libel case),
那么
正确的说法是
The trial of the XXX libel case has ended
或
The trial of the XXX case has ended.
希望帮到了你,