S-unit meter

例句：

1. 1. The clock is ticking away the seconds of our lives.
   时钟在倒数我们的生命。
2. 2. The race was won by the team that had a better S-unit meter.
   比赛由拥有更好秒表的团队赢得。
3. 3. The scientist used his S-unit meter to measure the distance between two points.
   科学家使用他的秒表测量两点之间的距离。