It was all pure speculation because as I said, there was no way to know if the bulb was really going to produce the variety, the color that was promised.

这都纯粹是猜测，因为正如我所说，没有办法知道球茎是否真的会像承诺中那样开出各种品种、颜色的花。

She dismissed the newspaper reports as pure speculation.

她说报纸上的报道毫无根据，纯属臆断。

What you say is pure speculation.

你说的纯粹是推测而已。

But this is just pure speculation.

但这只是纯粹的推测。

All this is pure speculation, of course.

当然，这一切完全只是揣测。