- A military parade step executed by swinging the legs sharply from the hips and keeping the knees locked.正步：一种军队阅兵时的步法：从臀部开始两腿摆动，而膝关节保持站立时的状态
- second banana
- second base
- second baseman
- second best
- second blessing
- second childhood
- second class
- second-class
- second-class citizen
- Second Coming
- second cousin
- second-degree burn
- seconded
- Second Empire
- second fiddle
- second-generation
- second growth
- second-guess
- second-guess
- secondhand
- second hand
- secondhand smoke
- secondi
- secondi
- secondines