(单词翻译:单击)
Lu Zhouhong, an expert from Shanghai Public Health Research Center, said that effective vaccine is crucial to containing the disease. According to the center's statistics, from 2002 -2006, there were fewer people infected by the disease below 15. He estimated that China would have few Hepatitis Type B patients in 20 years.
收听单词发音
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vaccine
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| n.牛痘苗,疫苗;adj.牛痘的,疫苗的 | |
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