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来源:雅诚德英语网
The outbreak of swine flu that was first deteccted in Mexico was declared a global epidemic on June 11, 2009.
2009年6月11日,墨西哥首次爆发的猪流感被宣布为全球流行病。
The outbreak of swine flu that was first deteccted in Mexico was declared a global epidemic on June 11, 2009.
2009年6月11日,墨西哥首次爆发的猪流感被宣布为全球流行病。