I was a little breathless and my heartbeat was bumpy and fast...我有点儿喘不上气，心脏咚咚地快速跳动着。Experimenters have succeeded in controlling the rate and regularity of the heartbeat.实验者已经成功控制了心跳的速度和频率。Each heartbeat has two basic par...
Experimenters have succeeded in controlling the rate and regularity of the heartbeat.实验者已经成功控制了心跳的速度和频率。She was taken to hospital suffering from an irregular heartbeat.她因心律不齐被送往医院。I was a little breathless and my heartbe...