to run out of steam
01
to lose one's enthusiasm or motivation, making one incapable of finishing a job or task
idiom
예시들
She was excited about the course at first, then ran out of steam halfway through.
02
to lack the energy necessary to complete a job or task, particularly after a long period of activity
예시들
The marathon runner ran out of steam in the final stretch.
03
to be without the necessary means to continue an activity or to fulfill a need
예시들
The army ran out of steam and had to retreat.



























