这个短语在英语中叫做 "exhausted but happy"。来源是人们常常会感到疲劳，但是如果他们做到了一件令自己开心的事情，他们也会感到开心。
例句：
I'm exhausted but happy after finishing my marathon. (我完成马拉松后，感觉既疲劳又开心。)
She was exhausted but happy after spending the day at the beach with her friends. (她和朋友在海滩度过了一天，感觉既疲劳又开心。)
He was exhausted but happy after a long day of work. (他在工作了一整天后，感觉既疲劳又开心。)