I cannot conceive of him as a genius.

我不能设想他会是一个天才。

youdao

I cannot conceive what it must be like.

我想象不出它会是什么样子。

《牛津词典》

I cannot conceive of such a thing happening again.

我不能想像这种事会再发生。

《新英汉大辞典》

"I cannot conceive of people calling this a dull place, " Harriet Low, an American woman, would write to her sister in 1829.

CNN: ASIANOW - TIME Asia | Visions of China: Macau

I, for one cannot conceive of anything worse.

FORBES: Obama Better Be Bold Tonight Or Else