In historical linguistics, a macro-family, also called a superfamily or phylum, is defined as a proposed genetic relationship grouping together language families (also isolates) in a larger scale classification.Campbell, Lyle and Mixco, Mauricio J.
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。