Soon,Barton recognized that many more lives could be saved if the men had medical help immediately after they were hurt.
VOA: special.2009.07.26
And they did this by taking-- they recognized that somehow, if you had a mild exposure to the disease, your body could then develop protection against more severe forms of the disease.
他们通过用,他们通过某种方式意识到,如果较轻微地得过这种病,你的身体会发展保护机制,来抵挡更为严重的疾病
Even if they do have a proof of identity, none are recognized across the country.
VOA: standard.2009.09.24
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