back seat (n.)
同样地， back-seat，1832年，最初用于指马车，源自于 back（形容词）和 seat（名词）。到1868年，它被比喻为“不重要的或最不突出的位置”。到了1923年，有人创造了一个新词“ Back-seat driver ”，指那些给司机无用建议的乘客。
You know him. The one who sits on the back seat and tells the driver what to do. He issues a lot of instructions, gives advice, offers no end of criticism and doesn't do a bit of work. ["The Back Seat Driver," Wisconsin Congregational Church Life, May 1923]
你知道他。那个坐在后座上告诉司机该干什么的人。他给予很多指示、提供建议，发表无穷无尽的批评，但却毫不劳动。 ["The Back Seat Driver," Wisconsin Congregational Church Life, May 1923]
最早记录年份: 1832