1. 处于默默无闻的地位：swith majors 转系 | take a back seat 处于默默无闻的地位 | take a break 休息一下

2. 不得意,不重要：Tailors and writers must mind the fashion. 裁缝重式样,作家重时尚. | Take a back seat 不得意,不重要 | Take away fuel, take away flame. 薪尽火自灭

3. 让步：tailgate尾随 | take a back seat.让步 | Get one's feet wet.初次涉足某事

4. [美]黯然引退, 处于次要地位：safe seat (某一政党)在选举中有把握稳操胜券的选区或议席 | take a back seat [美]黯然引退, 处于次要地位 | take one's seat 就座, 坐在自已的座位上 (当选为议员后)就职