资料VOA第一段：This is the VOA Special English Health Report.
Cardiopulmonary resuscitation, or CPR, can save the life of someone whose heart has
stopped. The condition is called cardiac arrest. The heart stops pumping blood. The
person stops breathing. Without lifesaving measures, the brain starts to die within four
to six minutes
第一和第二个单词好难，训练十分钟，两个词。
总共用时半个小时左右。
