名詞 heart beat:

1. the rhythmic contraction and expansion of the arteries with each beat of the heart
   同義詞：pulse, pulsation, heartbeat, beat
2. a very short time (as the time it takes the eye blink or the heart to beat)
   同義詞：blink of an eye, flash, heartbeat, instant, jiffy, split second, trice, twinkling, wink, New York minute
3. an animating or vital unifying force
   同義詞：heartbeat

1. Her heart beat fast with delight.
   她高興得心跳加速。
2. My heart beat thick in the course of the interview.
   在面試過程中我的心跳得厲害。
3. I felt my heart beat violently.
   我感覺到自己的心跳得很厲害。
4. Your heart beat will quicken when you run up the stairs.
   跑上樓梯時，心跳會加速。