dampen down
To dampen something down means the same as to dampen it.
The new penalties were aimed at dampening down consumer spending.
新的惩罚措施旨在抑制消费者支出。
dampens , dampening , dampened
To dampen something such as someone's enthusiasm or excitement means to make it less lively or intense.
Nothing seems to dampen his perpetual enthusiasm.
似乎没有什么能减弱他持久的热情。