•[+ that] You're presupposing that he'll have told her - but he may not have.你是在推测他早已告诉她了——但他可能没有这样做。

•Investigative journalism presupposes some level of investigation.调查报道要以一定程度的调查为前提。

•[+ that] All this presupposes that he'll get the job he wants.所有这些都要以他能如愿找到工作为前提。