to peter out 逐渐消失

英文释义
Phrasal verb meaning to decline gradually; to fade slowly but completely; to lose size or energy.

例句
The huge, previously lucrative silver mine began to peter out after a while, and it produced less and less each year until it finally closed.

这座从前利润很高的大型银矿在一段时间以后开始萎缩，产量一年比一年少，直到最后关闭。