cannot v. 不能；无法 ；
heartbeat n. 心跳；情感；心动；
例句：
（图片来自网络侵删）
She felt her heartbeat quicken as he approached.
随着他的走近，她觉得自己的心跳加速了。
相关介绍The headphones are amplifying their heartbeat.
耳机在放大他们的心跳声。
Subjects are wearing headphones that amplify their heartbeat.
受试者正戴着放大他们心跳声的耳机。
When a whale dives, its metabolic rate drops, causing its heartbeat to slow down.
当鲸鱼潜水时，它的新陈代谢率下降，导致心跳减慢。
