此文系瓦勒氏
Another naturalist,Alfred Russel Wallace, had independently written a paper that contained ideas similar to Darwin's concerning evolution.
VOA : special.2009.02.25
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。