句子：
The study was published in the British medical magazine, The Lancet. Doctors in Tokyoled the research.
It examined more than four thousand people who had suffered cardiac arrest. In all the cases, witnesses saw the event happen.
More than one thousand of the victims received some kind of medical assistance from witnesses.
感想：
单词成句的节奏和语调还在继续尝试，能发出来的和想发出来的之间差了不少。
时间：1/22h
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