短語(yǔ)詞組短語(yǔ)letter r of introduction 介紹書;介紹信recommendation letter of introduction 表示推薦的書信the letter of introduction 推薦信business letter of introduction 業(yè)務(wù)介紹信WESTBANK letter of introduction 介紹信informal letter of introduction 非正式介紹信Official Letter of Introduction 正式介紹信letter of introduction c 介紹信a letter of introduction 介紹信;先容信 返回 letter of introduction