单词	前导码--前置码
释义	前导码；前置码lead code
随便看	vaccine point vaccine preservative vaccine-preventable disease vaccine-preventable disease {=vpd} vaccine program vaccine--recombinant vaccine-related risk communication vaccines vaccine safety vaccine-safety-conscious environment vaccine schedule for immunization vaccine software vaccine therapy vaccine-therapy vaccine vaccine-lymph vaccine vaccine-lymph vaccine virus vaccine (狭义) vaccine，autogenous vaccine，avirulent vaccine，bacterial vaccine，combined or mixed vaccine，combined ormixed vaccine，inactivated vaccine，killed