单词	double helix
释义	double helixˌdouble ˈhelix noun [countable] science, biology a shape consisting of two parallel spirals that twist around the same center, found especially in the structure of DNA
随便看	understood understory understudy undertake undertaker undertaking under-the-counter undertone undertow underused underutilization underutilized undervalue undervalued underwater underway underwear underweight underwent underwhelm underwhelmed underwhelming underwire underwire bra underworld

英语词典包含48224条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。