单词	R & R
释义	R & R 1 of 2 abbreviation (1) rest and recreation; rest and recuperation; rest and relaxation RR 2 of 2 abbreviation (2) 1 railroad 2 rural route Example Sentences Abbreviation (2) Turn left at the RR crossing. Kids Definition RR abbreviation railroad Medical Definition RR abbreviation recovery room
随便看	sulfated oil sulfates sulfathalidine sulfatic sulfating sulfation sulfations sulfatize sulfato- sulfenic acid sulfenyl sulfhydrate sulfhydryl sulfhydryls sulfidation sulfide sulfide color sulfide dye sulfide toning sulfides sulfidic sulfidise sulfidize sulfids sulfilimine

英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。