她希望能找到一份在智力上更有挑战性的工作。

She's hoping to find a job which is more demanding ___intellectually.

一些人觉得由于家庭责任，他们在成年早期缺乏在智力上发展的时间。

Some people feel they lack the time to develop ___intellectually in early adulthood due to family commitments.

我觉得他的新书在思想上非常有启发性。

I find his latest book deeply ___intellectually stimulating.