单词：buffering chain
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WHO: Alcohol Can Kill 世卫组织表示酒精可以致死 From VOA Learning English, this is the Health Report. Many people all over the world enjoy an alcoholic drink, such as wine or beer, during dinner. Many people raise a glass of alcohol to cel
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Optimists are wiser than their pessimistic peers, and bitterness keeps a person from being wise because they haven't learned lessons, Canadian researchers say. 加拿大研究人员称，整日忧心忡忡的人不如那些天性乐观的人聪明，因
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Diet fuels Olympic athletes An Olympic athlete goes through a strict training regimen as they prepare for the games. Everything they do is analyzed, from practice sessions to the food they eat. And everything they consume is closely monitored to ensu
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By 1958, when people in lab coats started to pay attention to it, it had risen to 315 parts per million. 到1958年实验室人员开始重视这个问题的时候，那个数字已经上升到百万分之三百一十五。 Today it is over 360 parts
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