to lose steam
01
失去动力, 失去热情
to lose momentum, energy, or enthusiasm for something, especially a task or project
![to [lose] steam definition and meaning](https://cdn.langeek.co/photo/40891/original/?type=jpeg "to [lose] steam definition and meaning")
idiom
例子
The company's marketing campaign started out strong, but it has been losing steam in recent weeks as interest from consumers has waned.
这个项目开局不错，但很快就失去了动力。
