During the past generation, the American middle-class family that once could count on hard work and fair play to keep itself financially secure has been transformed by economic risk and new realities.
在过去的几十年里，美国的中产阶级家庭曾经依靠努力工作和公平竞争来保证自己的财务安全，但现在的经济风险和新出现的情况已经改变了这种状况。
In the context of our model, we propose measuring risk as smallest expected weighted loss. Thus, the above-mentioned is transformed into one of risk control problems.
在这种模型框架下，给出加权最小平均损失来测度风险的标准，于是问题转化为风险控制问题。
Coronary care units have transformed the treatment of many patients whose lives are at risk.
冠心病监护单位已经改变了许多患者治疗，他们的生命正处于危险之中。
Coronary care units have transformed the treatment of many patients whose lives are at risk.
冠心病监护单位已经改变了许多患者治疗，他们的生命正处于危险之中。
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