Something else they might have to do is give CPR, cardiopulmonary resuscitation.

他们可能需要做的另一件事是进行心肺复苏术，即心肺复苏术。

CPR (cardiopulmonary resuscitation) should be given immediately if a pulse can't be felt and there is no sign of breathing.

如果感觉不到脉搏且没有呼吸迹象， 应立即进行心肺复苏术（CPR）。