stagnate|stagnated

如果缺乏新想法，我们的项目就会停滞不前。

Without fresh ideas, our project will ___stagnate and make no progress.

由于缺乏新想法，这个项目停滞不前了。

The project ___stagnated due to a lack of new ideas.

由于缺乏创新，这个项目的进展停滞了。

The project's progress ___stagnated due to a lack of innovation.