That was a conjecture, not a fact.

那是个推测，不是事实。

《柯林斯英汉双解大词典》

Is it a fact or conjecture?

这是事实还是假设？

youdao

In fact, this conjecture is not comprehensive.

事实上，这一猜想是不全面。

youdao

He didn't know the fact; what he said was pure conjecture.

他并不知道实情，他说的纯属猜测。

youdao

He didn't know the fact; what he said was pure conjecture.

他并不知道实情，他说的纯属猜测。

youdao