n.心跳加速；心動過速
He was comatose and had a severe fever and tachycardia. 他處于昏迷狀態(tài)，伴高熱和心動過速。
There is sudden onset of tachypnea, dyspnea and tachycardia. 突然發(fā)作呼吸急促、呼吸困難和心動過速。
