英语词汇doubtful species怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

英汉双解词典包含3607232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。

单词	doubtful species
释义	doubtful species
随便看	regular transmittance regular tread pattern regular tread tire regular tread tyre Regular tree Regular tree grammar regular tree transformation regular triact regular trial Regular Triangle regular tube regular turn regular turning tool regular twill regular twist regularty of epidemic regular type gear lubricant regular unbiassed critical region regular unbiassed critical regions Regular value regular variable regular variable star Regular variation regular variety regular vehicle