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The surgeon connects the plastic tubes from the heart-lung machine to the patient.
外科大夫用塑料管把心肺机与患者连接起来。
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At first, the tubes contained just a plastic rod.
开始时，这些管子里只含有一个塑料棒。
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At first, the tubes contained just a plastic rod.
开始时，这些管子里只含有一个塑料棒。
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