1. The mainstream western psychology is based on a postulation that there exist some universals in human mentality, but this postulation is also widely disputed. 心理学家对于人类心理的普遍性本身及如何对其加以研究却一直没有加以明确的分析说明。
2. It is thought (a postulation at the moment rather than sure fire fact) that the surface of the wing has a covering of protrusions that are so small they can be called submicroscopic. （现在是假设而非真实）人们认为翅的表面有很小的覆盖着的隆起，可以说是超微观的。
3. Mainstream science is the consensus of outstanding analytical minds based on the comparison of a wide range of evidence, not the unsubstantiated postulation of some persuasive individual. 科学界的主流观点不是靠某个人的三寸不烂之舌吹出来的，而是最有专业判别能力的人在推敲、比较方方面面的证据之后得出的共识。
英英解释
n.
1. (logic) a declaration of something self-evident; something that can be assumed as the basis for argu
2. a formal message requesting something that is submitted to an authority
