He cut open his patient's chest and tried, unsuccessfully, to massage his heart back to life with his bare hands.

他剖开病人的胸腔，用没有消过毒的手，尝试按摩病人的心脏，使他重新活过来，可结果没成功。

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The mechanism of circulation in open-chest cardiac massage in apparently superior to that in closed—chest compression.

开胸心脏按压的血流机制明显优于胸外心脏按压。

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