研究人员说直到目前还没有发现任何问题。

Staff at the institute said yesterday its lab hadn't found any problems so far.

youdao

直到目前，国会中的主要障碍也不是核电站的安全性，而是如何为安全性埋单。

Until now, the primary obstacle in Congress has not been the safety of nuclear plants, but rather how to pay for them.

youdao

诀窍在于通过第4维空间即直到目前还未观察到的空间把中微子发送到一个捷径上，以减少中微子的行程。

The trick is to send neutrinos on a shortcut through a fourth, thus-far-unobserved dimension of space, reducing the distance they have to travel.

youdao

Until that point, we have no reason to really give up on our current existing ideas about what justice is.

直到完全了解，我们没有理由放弃,我们目前现存有关正义的概念。

耶鲁公开课 - 政治哲学导论课程节选

We can't conclude that until we know that there aren't any competitors, that there isn't anybody else right now who also has the same personality.

我们不能妄下定论，直到确定没有其他竞争者，确定目前没有其他任何人拥有相同的人格。

耶鲁公开课 - 死亡课程节选

So what actually turns out the reality is that h e 2 does exist, but it exists as the weakest chemical bond known, and it wasn't, in fact, even found to exist until 1993, so I can assure you this is not a bond that you see very often in nature, and it is a very, very weak bond.

实际上He2键是存在的，但它是目前所知的最弱的键，直到1993年它才被发现，所以我可以向你们保证在,自然界你们不可能经常看到它，它是种非常非常弱得键。

麻省理工公开课 - 化学原理课程节选