peter out
phrasal verbpeter out
- to gradually become smaller, quieter, etc. and then end
逐渐减少；逐渐减弱；慢慢消失 - The campaign petered out for lack of support.
那场运动因缺乏支持者而最终不了了之。 - The road petered out into a dirt track.
大道延伸到一条泥土小径。 - The conversation became strained and eventually petered out.
谈话变得紧张并最终逐渐消失。
- The campaign petered out for lack of support.