单词	precautionary
释义	pre·cau·tion·ar·y (prĭ-kôshə-nĕr′ē) also pre·cau·tion·al (-shə-nəl) adj. Of, relating to, or constituting a precaution: taking precautionary measures; gave precautionary advice.
随便看	rule of thumb rule out ruler rulership rule the roost ruling ruly rum rum rumaki Rumania Rumania Rumanian Rumanian rumba rumble rumbler rumble seat rumble strip rumblingly rumbly rumbustious rumbustiously rumbustiousness rumen

英语词典包含135693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。