... be a question of time只是时间问题，迟早会发生 bring something into question 使人们进一步考虑（或讨论）某事 come into question 被进一步讨论（或考虑） ...
双语例句
1
She is so talented that her success can only beaquestionoftime.
她才华横溢，事业成功只是时间问题。
2
Good and evil will always be rewarded; it is only aquestionoftime.
善恶到头终有报，只争来早与来迟。
《新英汉大辞典》
3
We call this one 'response latency' and it means that, because it takes a lot of brainpower to concoct a lie, there may be a time lag between you asking a question and the other person answering.