pulse-clock

例句：

1. 1. She was so excited to see her favorite band perform live.
   她非常兴奋地看到她最喜欢的乐队现场表演。
2. 2.The doctor gave him a pulse-clock and said it was time for him to rest.
   医生给他一个脉搏时钟，并说该是他休息的时候了。
3. 3. He used his pulse-clock to track his heart rate throughout the day.
   他使用他的脉搏时钟来跟踪他一天中心率的变化。