principal sum英语标准发音：principal sum英式发音：美式发音：翻译中文本金principal sum – 基本释义[词典1]资金本金资金,本金principal sum – 英英词典NOUN[名词]capital as contrasted with the income derived from it资本与由此产生的收入形成对比principalcorpusprincipal sum – WEB词典principal sum本金the principal sum资本本金principal sum insured主要保额 参考资料： 1.百度翻译：principal sum 2.有道词典：principal sum 3.爱词霸：principal sum
