(of a young bird)develop wing feathers that are large enough for flight
(幼鸟)长出飞羽。
[with obj.]bring up (a young bird) until its wing feathers are developed enough for flight
把(幼鸟)养至长出飞羽。
"mid 16th cent.: from the obsolete adjective
网盟英语在线翻译词典收录了36528条英语词汇在线翻译词条,基本涵盖了全部常用英语词汇的中英文双语翻译及用法,是英语学习的有利工具。