单词	first officer
释义	first officer noun 1 : a first mate in the merchant service 2 : copilot Word History First Known Use 1758, in the meaning defined above
随便看	Exogonium exograph exogynous Exogyra exolete exolution exome exomions exomologeses exomologesis exomorphic exomorphism exon exonarthex exonephric exoner exonerate exonerated exonerates exonerating exoneration exonerations exonerative exonerators exoneree

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。