英语词汇retroactive policy怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	retroactive policy
释义	retroactive policy 简明释义有追溯效力的保险单
随便看	lattice effect lattice eigenvalue lattice element lattice emission lattice energy lattice equality lattice expansion lattice expansion method lattice experimental design lattice face lattice feeder lattice fence lattice fiber lattice fiber lattice file lattice filter lattice filter structure lattice fin lattice fixed-point theorem lattice flow lattice force lattice force on dislocation lattice form lattice formation lattice frame

英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。