以前没有需求，所以一切研究停留在实验室阶段。

There was no demand before, so all the research stayed in the laboratory.

youdao

在建议的方法中，如果没有他的信任和信心，我们仍将停留在概念阶段。

Without his trust and confidence in the proposed approach, we would still stay at conceptual phase.

youdao

就许多药物而言，特别是那些复杂制品，安全性检测不能停留在生产阶段。

For many medicines, and particularly complex products, safety monitoring does not stop at the manufacturing stage.

youdao

And Freud believed, as well, that if you have a problem at a certain stage, if something goes wrong, you'll be stuck there.

弗洛伊德还认为，如果你在某一阶段遇到了阻碍，没能得到满足，你就会停留在这个阶段。

耶鲁公开课 - 心理学导论课程节选

So far we've looked at this game as played by people and we've looked at this game who are evil gits, as played by people who are indignant angels.

目前为止我们对这个博弈的分析,还停留在局中人都是饭桶恶魔,或者都是愤怒天使的阶段呢

耶鲁公开课 - 博弈论课程节选

I would say that in Biomedical Engineering, largely, we're still at the stage where we're trying to understand how things work and how they fail, and what materials are the right ones.

我要说的是,生物医学工程很大程度上,仍旧停留在试图探索产品的工作原理,以及寻找产品存在缺陷的原因,和选择正确材料的阶段

耶鲁公开课 - 生物医学工程探索课程节选