Could it be said that it is impossible of attainment?

难道这是办不到的吗？

《新英汉大辞典》

Could it be said that this is not enough?

A难道这还不够吗？

youdao

Could it be said that I always complained in workdays?

难道说我在平日工作中经常抱怨么？

youdao

It said television broadcasts and other recordings could be gathered using programs developed by the Fraunhofer Institute for Intelligent Analysis.

VOA: special.2011.01.18

And there's a lot to be said about this but it could be pretty simply illustrated in language.

要想解释清这一点还是比较费劲的,但要用语言来说明就很简单了

耶鲁公开课 - 心理学导论课程节选

You said that there will be homecoming day this week. Could you talk about it in detail?

你说这周末是返校日。能讲详细一点吗？

对于返校日 - SpeakingMax英语口语达人

Only when Netanyahu embraced the false claims of the likes of Obama and Sarkozy that it is possible to reach a peace deal with the Palestinians based on the establishment of an independent Palestinian state west of the Jordan River could it be said that he made false statements.

CENTERFORSECURITYPOLICY: With friends like these

At the moment it could well be said that it leaves a lot to be desired so it really is going to need a lot of help and support to get this right.

BBC: NEWS | UK | Wales | Quango staff fear for jobs

Could it even be said to exist?

ECONOMIST: Retracing the steps of one 18th-century Scottish family