riskern.冒险者；投机者riskn.危险；风险；投资报酬的风险vt.冒 ... 的危险；承受...的风险risk of central bank央行风险risk and precautions风险及防范risk and uncertainty风险与不确定性risk factor analysis易患因素分析risk guard mechanism风险防范机制risks of hierarchies危险分层risks identification风险识别risk early-warning风险预警risk function method风险函数法risks in transaction交易风险