冬练三九(15)

It said people should increase the number of chest  presses from 15 to 30 for every two breaths given Gordon Ewy isa heart doctor at the University of Arizona college of medicine in Tucson. He wrote a report that appeared with the study.

有些名字 地名,包括专有名词,真的不知道怎么读,还不知道什么意思,真的是要靠积累的,不是能猜一下的,知道就知道了,不知道就是不知道。

现在有些适应美音了,之前听着不舒服

累积练习半小时

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