英语词汇helpfulness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

单词	helpfulness
释义	helpfulness n [U].
随便看	sometime sometimes someway somewhat somewhere somnambulism somnambulist somnolence somnolent somnolently son sonar sonata son et lumiere song songbird song-book songster songstress songwriter sonic sonic barrier sonic boom son-in-law sonnet

英汉双解词典包含38652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。