KEY: Essential.SYN: Innate, inherent, requisite, necessary, vital, immanent,indispensable, leading, accidental, qualitative, quantitative,promotive, regulative, induced, imported, adventitious, ascititious,redundant, superfluous.
英语同义词词典收录了7932条英语词条，基本涵盖了全部常用同义词或反义词的辨析及翻译，是英语学习的有利工具。