KEY: Perennial.SYN: Perpetual, unceasing, unfailing, ceaseless, incessant, constant,permanent, unintermittent, continual, undying.ANT: Periodical, occasional, intermittent, failing, deficient,uncertain.
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。