冬练三九(14)

22% survived with good brain ability. only 10% of the victims treated with traditional CPR survived with good brain ability, the American Heart Association  changed its guidelines for CPR  chest presses in 2005.

三个句子读下来很有难度,特别像survived前后两个咬唇音,还是有点不习惯,要反复练习。

感觉比之前有点进步。小喜悦中。

累计练习半小时

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