单词	full grade
释义	full grade noun linguistics : the basic ablaut grade of an Indo-European root usually filled by the vowel e and constituting the citation form of the root Word History First Known Use 1901, in the meaning defined above
随便看	propanil propanols propanones propargyl Proparia proparian proparoxytone proparoxytones proparoxytonic propatagia propatagial propatagian propatagium propel propellable propellant propellants propelled propellent propellents propeller propeller cuff propeller race propeller shaft propeller turbine engine

英语词典包含469781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。