六级练习2013.03.03 people, fingers, produce, 办法, only

Rebecca949

If blood vessels are damaged, people can suffer a gangrene infection. Sometimes the only way doctors can treat an injury like this is to remove frostbitten areas like fingers and toes.如果人体血管受损,就可能会导致坏疽感染.医生有时处理这种伤害的唯一办法就是切除该冻伤部位,例如手或脚趾.
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susan.sui

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