Mr Johnes is an old Stick-in-the-mud: you'll never persuade him to change at all.

琼斯先生是一个墨守成规的人：你们根本无法说服他有所居改变。

youdao

The man next door looks young in his outlook, but he is an old stick-in-the-mud. He never goes out or has friends in he just sits around in front of the TV, the great American sedative.

隔壁那人看来年纪轻轻，但是从来不出去，也不邀请朋友来家里，他只是坐在电视机跟前消磨时光，跟七老八十的人一样暮气沉沉。

youdao