dampen

He would dampen the clay and begin to mould it into an entirely different shape.

他把黏土弄湿，然后着手把它塑造成一个完全不同的形状。

Nothing seems to dampen his perpetual enthusiasm.

似乎没有什么能减弱他持久的热情。

So it is more likely that poor health, not just family involvement, dampens spirits.

因此，更有可能的是，不仅是糟糕的家庭关系，糟糕的健康状况也会打击人们的精神力量。

It may dampen the enthusiasm of scientists for independent research.

这可能会降低科学家从事独立研究的热情。