actuary
noun [ C ] uk/ˈæk.tʃu.ə.ri/ us/ˈæk.tʃu.er.i/
保险精算师（计算火灾、洪水或财产遗失等事故发生的频率并以此为依据告知保险公司应向其顾客收取的保险费）
a person who calculates how likely accidents, such as fire, flood, or loss of property, are to happen, and tells insurance companies how much they should charge their customers