心跳速率 xīntiàosùlǜ heart rate Origin Definitions Defs Strokes Stroke Words Sentences Sents 心跳 xīntiào noun + verb heartbeat the physical beating of the heart; to palpitate; a rapid pulse caused by excitement, fear, or physical exertion速率 sùlǜ rate speed or pace at which something happens or is done, such as reading or marketing