单词	firstly
释义	first·ly (fûrstlē) adv. In the first place; to begin with; first.
随便看	octa- octad octadic octagon octagonal octagonally octahedral octahedrally octahedron octal octameter octane octane number octanoic acid Octans octant octantal octapeptide octastyle octaval octave Octavian Octavio octavo octet

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。