pulse top droop

例句：

1. 1. He felt his heart pounding in his chest.
   他感觉到他的心脏在胸口猛烈地跳动。
2. 2. The doctor checked her pulse to make sure she was still alive.
   医生检查了她的脉搏，以确保她还活着。
3. 3. Her pulse quickened as she heard the news.
   听到这个消息后，她的脉搏加快了。