to peter out
[phrase form: peter]
01
次第になくなる, 弱まって終わる
to gradually end or fade away, often due to becoming weakened
例
The trail peters out about half a mile up the mountain, making it difficult to follow.
その小道は山を約半マイル登ったところで消えていくため、追跡が困難です。
02
次第になくなる, 徐々に消える
to gradually fade away to the point of stopping or disappearing
例
After running the marathon, Sarah petered out and had to rest for the whole day.
マラソンを走った後、サラは力尽きて一日中休まなければならなかった。
