Stopwatch
01
秒表, 计时器
a watch with a button to stop and start time, used in sport events
例子
The coach used a stopwatch to time each runner during the track practice.
教练在田径训练中使用秒表来计时每位跑步者。
She started the stopwatch as soon as the race began to measure her performance.
比赛一开始，她就启动了秒表来测量她的表现。
