He claimed he had no prior knowledge of the protest.

他声称他事先对那次抗议一无所知。

Although not essential, some prior knowledge of statistics is desirable.

统计学的知识虽非必要，但最好是学过一点。

He made the decision without my prior knowledge or consent.

他瞒着我做出了决定。

No one had prior knowledge of her stunt on the stage.

没有人事先知道她在舞台上有那样的惊人之举。

He said that he had no prior knowledge of the meeting.

他说他事先对这次会议的情况一无所知。