没有人知道答案。

No one knows the answer to this question.

youdao

有预测说，艺术市场的“寒冬”会继续蔓延至2009年，或更远的几年后，没有人知道答案。

There are predictions that the "cold winter" of art market will continue to the year of 2009, or years much later, and no one knows the answer.

youdao

开始收集这些需求时需明白一点，即没有人真正知道正确答案是什么。

The main thing you'll learn as you start to collect these requirements is that no one really knows the right answer.

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