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来源:雅诚德英语网
The rate of illness tends to increase in the warmer months, in part due to picnics and barbecues, CDC researcher Elaine Scallan tells WebMD.
患病率在天气温暖的月份呈上升趋势。其中部分原因正是野餐和烧烤。
The rate of illness tends to increase in the warmer months, in part due to picnics and barbecues, CDC researcher Elaine Scallan tells WebMD.
患病率在天气温暖的月份呈上升趋势。其中部分原因正是野餐和烧烤。