It showed the distribution of the most common varieties including the human flea (Pulex irritans), the dog flea (Ctenocephalides canis) and the cat flea (Ctenocephalides felis).
BBC: Who, What, Why: Have flea numbers jumped?
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。