我不是说困难时期是造就这样绘画的单一因素。

I'm not saying hard times alone produced this painting.

youdao

结果很少是由单一因素造成的，单一因素并不总是引起相同的结果。

Results are rarely about a single factor, and a single factor doesn't always produce the same results.

youdao

但是虽然疼痛可能来自主观思想，但这并不表明大脑是控制疼痛的单一因素。

But although pain may be subjective, that does not mean the final experience is controlled solely by the mind.

youdao