over the hill 〈非正式〉上了年纪了；人老珠黄；过气

【例句】
He said that he was over the hill and didn't want to move a lot.
他说他已经人过中年，不想再跑跑颠颠的了。

Old Tom is no longer what he used to be, he's over the hill.
老汤姆今非昔比了，他是一天不如一天了。