臆测
4.an editorial full of conjecture
5.Your theory is pure conjecture .
8.To assume, presume, or assert(a fact) without sufficient information.
9.However, most scientists do not agree that the Piri Reis map is any more accurate than might be expected based on contemporary geographical knowledge and guesswork.
10.For relatively well-studied groups, such as the ants, hypotheses regarding biogeographic origins can be posed based simply on the distribution of related taxa.
