这个领域仍然存在很多无法回答的问题，但是鱼类和海鲜是地中海饮食的一个主要部分。

There are still a lot of unanswered questions in this area, but fish and seafood are a major part of the Mediterranean diet.

youdao

这是个我无法回答的问题。

This is an unanswerable question for me.

youdao

这是无法回答的。

That's unanswerable.

youdao

Nobody knows, but there's a theory which won't answer your question but will put it into a broader context.

没有人知道答案,但有这么个理论,它无法回答你的问题,但却能让你从更宽广的视角来看这个问题

耶鲁公开课 - 心理学导论课程节选

Her answer was this and it's got something to do with how a lost cause took hold too but she said, "Southerners love a good tale.

她是这么回答的,同时也解释了为何南方人始终无法释怀,她说,"南方人钟爱精彩的故事

耶鲁公开课 - 美国内战与重建课程节选

Impossible to answer also.

这也是没有意义，无法回答的。

哈佛公开课 - 幸福课课程节选