run out of steam
US /rʌn aʊt əv stiːm/
UK /rʌn aʊt əv stiːm/
1.
后劲不足, 筋疲力尽, 失去动力
to lose energy or enthusiasm and stop doing something, or to become tired and less effective
:
•
The project started strong, but it seems to be running out of steam now.
项目开始时势头很猛，但现在似乎后劲不足了。
•
After working for ten hours, I started to run out of steam.
工作了十个小时后，我开始筋疲力尽。