He worked late every day and took frequent business trips for several years before he finally hit the wall.他每天都工作到很晚，几年来又经常出差，直到最后他撑不下去了。

They seem to have hit the wall in terms of new ideas.他们这些新想法看起来是进行不下去了。

Her tennis career hit a wall after the injury.受伤后，她的网球生涯便走到头了。