英语俚语：over the hill
英文释义：no longer able to do something at an acceptable level because of age
中文释义：走下坡路,在衰退

例句：
1. Only those who are over the hill can appreciate the importance of good health.
已过中年的人才能理解身体健康的重要性。

2.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。