1)cardio respiratory ratio,心博呼吸比率2)cardiorespiratory ratio,心博呼吸比率3)cardiac activity,心博4)sudden cardiac arrest,心博骤停5)cardiac cycle,心博周期6)cardiac center,心博中枢7)cardiataxia,心博失调8)rhythmophone,心博扩音器9)The best physicians are Dr. Diet,Dr. Quiet,and Dr. Merryman.,节食博士、精心博士、快乐博士，三人都是最好的医生。