一原材料引用

He said people should increase the number of chest presses from 15 to 30 for every 2 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

二信息与事实

[ɪə]

先发ɪ再发ə，嘴呈扁平状，逐渐拉长

[ɪr]

先发ɪ再发r，要卷舌，嘴也是半张

[eə]

先发e再发ə，嘴唇半张

[er]

先发e再发r，口型由小到大

三学习与感悟

把每个发音做好，的确会提高整体的感觉，每个发音用上腹部的力量，比起不用来完全是两种效果，以前说话根本不会用到，现在在不断的练习中好像下意识的就用上腹气了

四练习时长

1h