...a purely hypothetical question.是什么意思？

...a purely hypothetical question.

纯属假设的问题

purely

adv. 完全地，十足地，纯粹地，纯洁地，贞淑地；

例句
Such is the size of the problem that these arguments are purely academic.
问题的实情在于这些论点纯属空谈。

hypothetical

adj. 假设的，假定的，有前提的，爱猜想的，假想；

例句
Let's look at a hypothetical situation in which Carol, a recovering cocaine addict, gets invited to a party.
让我们假设这样一种情景，卡萝尔，一位正在康复的可卡因成瘾者，应邀去参加一个聚会。

question

n. 问题，疑问，怀疑，议题；vt. 问（某人）问题，对（某事物）表示[感到]怀疑；

例句
...certain assumptions which are accepted without question as absolute truths.
某些未经质疑就被作为绝对真理而全盘接受的假设