play out
1．perform to the end把…进行到底
In spite of the heavy rain they managed to play out the football match．尽管雨下得很大，他们还是坚持把球踢完。
The actors played out the comedy and the audience applauded．演员们演完喜剧后，观众拍手喝采。
2．exhaust疲倦
I'm always played out by the time I finish work on Fridays．每到星期五这时候，所有的事情都做完了，我总会感到精疲力竭。
The work was strenuous for John，and each day he would arrive home all played out．对于约翰来说，这工作实在太吃力了，他每天回到家里，总是精疲力尽。
3．become ineffective已不适用Such methods soon played out．这些方法很快就不适用了。