1 to accept sth as true or existing and act on that basis, before it has been shown to be true 推测；预想: Teachers sometimes presuppose a fairly high level of knowledge by the students. 老师有时对学生的知识面估计颇高。 [SYN] presume 同义词为presume

2 to depend on sth in order to exist or be true 以…为前提或先决条件: His argument presupposes that it does not matter who is in power. 他的论点以无论谁掌权都无关系为前提。