英语词汇lack of proficiency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	lack of proficiency
释义	请查阅词条：lack
随便看	under siege undersigned under-singing under-sinner under-sitter under-size undersize undersized under-sized undersizing under-skin under-skinker underskirt under-skirt underskirts under-sky under-sleeve underslung undersoil undersoils undersold undersold under-soling under somebody's nose under somebody's spell

英汉双解词典包含464360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。