她非常有思想深度。

She's very ___intellectual.

他戴着眼镜、表情严肃的外表使他显得很有学识。

His appearance, with glasses and a serious expression, makes him seem ___intellectual.

许多有思想深度的个人出席了会议，并辩论了复杂理论。

The conference was attended by many ___intellectual individuals who debated complex theories.