adj.前言的，序文的，介绍的...

introductive的音标：introductive的英式发音音标为：[ɪntrə'dʌktɪv]introductive的美式发音音标为：[ɪntrə'dʌktɪv]...

One , introductive coke is in the action in blast furnace is well - known.前言焦炭在高炉中的作用是众所周知的.Service category , such as consultative information service, competitive information and introductive contents etc.包括参照性信息服务 、 竞...