单词	operosity
释义	operosity noun op·​er·​os·​i·​ty ˌäpəˈräsətē plural -es : operoseness Word History Etymology Latin operositas, from operosus + -itas -ity
随便看	backstairest backstairrer backstairrest backstairs backstamp backstand backstay backstay stool backstays Backstein backsteiner backstep backstepped backstepping backsteps backstick backstitch backstitched backstitches backstitching backstone backstop backstopped backstopping backstops

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。