1. any of several hemolysins derived from strains of streptococcus. 
   来自链球菌系的溶血素。
2. Comparable values given for loose black tea were 31 mg, 38 mg, and 40 mg per cup of beverage. 
   所给的散装红茶可作对照的数据为每杯饮料中含31mg,38mg和40mg。
3. an infection of the oral pharynx and tonsils by streptococcus. 
   由于链球菌所导致的喉咙扁桃体感染。
4. a unit of weight for precious stones = 200 mg. 
   用于测量珍贵宝石的重量单位=毫克。
5. Key Pollution Indicator of Dian Lake in 2001 Unit: mg/l 
   2001年度滇池湖体主要污染指标值　　单位:毫克/升

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