他们的实验被认为已经成功了.
主句一般现在时的被动语态,不定式是现在完成时.
they are believed to have already succeeded in their experiment.
they are believed to have already succeeded in their experiment.
怎么翻译,是什么时态?
怎么翻译,是什么时态?
英语人气：166 ℃时间：2020-03-28 21:29:36
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