1.原材料引用（Materials）
It said people should increase the number of chest presses from fifteen to thirty for every two breaths given. Gordon Ewy is a heart doctor at the University of Arizona College of Medicine in Tucson. He wrote a report that appeared with the study.
2.信息和事实（Facts）
1.不学到哭不算学会，学到刻骨铭心，才能入木三分，来的容易去的也容易，来的不快就慢慢练，不怕慢就怕站。
3.感受和评价（Commens）
1.找回学习状态
4.统计累计的练习小时数（Hours）
累计22+1=23小时
